Philatelic PNC Literature

Books, Catalogs and Publications

General

The Field Guide to Collecting PNC Commercial Covers, Rob Washburn, 2021

Contains useful information to assist you in searching for and through pnc commercial covers, including earliest usage dates, scarcity/value ratings, pncs tied on cover by purple machine cancels chart, selected First-class postal rates chart, several rare illustrated covers in color
Skowhegan, ME : R.M. Washburn, 2021. 104 pages, spiral bound. : Illustrated.


An Introduction to Collecting Plate Number Coils, Ed Denson, 1986

An introduction to collecting plate number coils /
Alderpoint CA : E. Denson, c1986. 29 pages. : Illustrated. ;   Includes glossary and list of information sources.


Flag Over Porch Classics, Jim Fowler, 1999

Flag over Porch classics
J. Fowler, 1999. [18] pages. : Illustrated. ;  Includes blank page for notes.


Krause Publications' Guide to collecting on the Web

Krause Publications' Guide to collecting on the Web / Guide to collecting on the Web
Iola, WI : Krause Publications, 2.0 Fall 2000 - 1 v. (in various pagings) 3.0 Winter 2000/2001 - 1 v. (in various pagings) 4.0 Spring 2001 - 1 v. (in various pagings) 5.0 Fall 2001 - 1 v. (in various pagings) <4> : Illustrated. (part col.) ;  Editors vary: 2.0 Fall 2000 & 3.0 Winter 2000/2001 / Editor: Sharon Korbeck ; Ad Manager: Jill Ruesch ; 4.0 Spring 2001 & 5.0 Fall 2001 / Editor: Joe Kertzman ; Ad Manager: Jill Ruesch. Incorporates section on stamps: Stamp collectors' Guide to collecting stamps on the Web / Editor/Publisher: Wayne L. Youngblood ... [et al.]. This Guide features such topics as: Associations/Clubs/Societies ; Postal Administrations ; Hobby Connections ; Searching for seasonal stamps ; Holiday hobby sites ; Web directory ; Philatelic links ; Tour the USPS site ; Study circles online ; Online stamp auctions ; Philatelic bureaus ; and Dealer site Web directory.


Linn's Plate Number Coil Handbook, Ken Lawrence, 1990

Linn's U.S. plate number coil handbook / U.S. plate number coil handbook
Sidney, OH : Linn's Stamp News, c1990. x, 353 pages. : Illustrated. ;   Bibliography: pages. 270-274. At back of the book are included: indexes, glossary, checklist of imperforate plate number coils, official data on coil stamps, plate number coil first day data, listing of selected domestic U.S. postal rates 1981-1990, plate number coil checklist, precancel gap position checklist - Cottrell Press issues, and topical checklist.


PNCs On Cover, Robert Washburn, 1988, 1990

PNCs on cover
Skowhegan, ME : R.M. Washburn, 1988 edition. - [18] leaves 1990 edition. - [34] leaves <2> v. : Illustrated. ;  Primary focus of the booklet is PNC commercial covers. It also includes information regarding plate numbers known on first day covers--introduction. Includes scarcity ratings. The 1990 edition. also contains information on PNCs known to exist on unofficial first day covers as well as earliest usage dates of PNCs off-cover and bibliographical references.


PNC Varieties, Robert Washburn, 1990

PNC varieties
Skowhegan, ME : R.M. Washburn, 1988 edition. - [41] leaves 1990 edition. - [56] leaves, [6] pages. of Illustrated., [2] leaves 2 v. : Illustrated. ; Includes bibliographical references.


Stamps That Glow, Wayne Youngblood, 1990

Stamps that glo/
Sidney, OH : Linn's Stamp News, c1990. v, 90 pages. : Illustrated. ;  At head of title on cover: Linn's. Includes index.


Transportation Issue Plate Number Coil Stamps, Joseph Agris, M.D., 1987

The Transportation Coils and other plate number coils issues
Houston, TX : Eclectic Publishing, c1987 332 pages, hard bound, illustrated, color plates Includes bibliographical references and index.


2001 Guide to Collecting Plate Number Coil Stamps, Philatelic Arts, 2001

Comprehensive Information and Listings for the collector of PNC Used Singles, Mint Strips and First Day Covers. Prices for used singles based on Philatelic Arts current price list.  Space is provided to record items and values for mint or used pairs, mint or used strips and First Day Covers. Out of print, no longer available.


2002 Guide to Collecting Plate Number Coil Stamps, Philatelic Arts, 2002

Philatelic Arts 2002-03 Guide To Collecting Plate Number Coil Stamps. Published yearly in July. Contains 240 pages of full color pictures of all US PNC stamps. 81/2 x 11" Spiral bound format with clear plastic covers. New die-cut varieities illustrated. Price guide for used singles and mint strips. Space to record your holdings. Gap Position article and exhibit by Gary Davis. Pre-Publication Price is $38.50 plus $5.25 S&H. After June 15th, 2002 price for PNC3 members $39.50 plus S&H. Retail is $42.50 plus S&H. Conn residents add sales tax. Check or MO only. Send to Philatelic Arts 370 Saw Mill Rd. Guilford, CT. 06437. Out of print, no longer available.


2004-05 Guide to Collecting Plate Number Coil Stamps, Philatelic Arts, 2004

Philatelic Arts FULL SIZE 2004-05 Guide to Collecting Plate Number Coil Stamps.  Published July, 2004. Contains 240 pages of full color pictures of all US PNC stamps. 8 1/2 x 11" Spiral bound format with clear plastic covers. New die-cut varieties illustrated. Price guide for used singles and mint strips. Space to record your holdings. Indicies by Scott number and Denomination. $49.75 includes S&H. Conn residents add 6% sales tax. Check or MO only. Send to Philatelic Arts, 370 Saw Mill Rd., Guilford, CT. 06437

Philatelic Arts BOOKLET SIZE 2004-05 Quick Pocket Guide To Collecting PNC Stamps. Published July, 2004. Contains 110 pages of full color pictures of all US PNC stamps. 5 1/2 x 8" Spiral bound format with clear plastic covers. Price guide for used singles and mint strips. Space to record your holdings. Easy to carry to shows, meetings or when traveling. $24.75 includes S&H. Conn residents add 6% sales tax. Check or MO only. Send to Philatelic Arts, 370 Saw Mill Rd., Guilford, CT. 06437

SPECIAL OFFER - BUY BOTH FULL SIZE AND POCKET GUIDE FOR $64.50 and SAVE $10.


United States Modern Plate Number Coil Errors, John Tison, 1996

United States modern plate number coil errors / John Tison's Report, July 1996 : United States modern plate number coil errors
Newport Beach, CA : J. Tison, 1996. 21 pages. ;  At head of title: John Tison's Report, July 1996. Computer-generated typescript format.


Catalogs

Catalog of United States Self-Adhesive Stamps, Alan Malakoff

Catalog of United States self-adhesive stamps /
[Highland Park? NJ] : The Editor, c1996. v, 93 pages. (loose-leaf) : Illustrated. ;  Includes errata page. Computer-generated typescript (photocopy) format.

Catalog of United States self-adhesive stamps /
[Highland Park? NJ] : The Editor, 1997, c1996. ix, 198 pages. (loose-leaf) : Illustrated. ;  Includes Errata & Addendum ; Updated: 3/18/97. Computer-generated typescript (photocopy) format.

Catalog of United States self-adhesive stamps /
[Highland Park? NJ] : The Editor, 1998, c1996. xiv, 286 pages. (loose-leaf) : Illustrated. ;  Computer-generated typescript (photocopy) format.

Denson's Specialized Catalog of Plate Number Coils on First Day Covers, Souvenir Pages and Ceremony Programs, Ed Denson, 1988

Denson's specialized catalog of plate number coils on first day covers, souvenir pages and ceremony programs /
Alderpoint, CA : ED Denson's Publications, c1988. vii, 157 pages. : Illustrated. ;  Includes index. Computer-generated typescript format.

          First Supplement

The First Supplement to Denson's specialized catalog of plate number coils on first day covers /
[Alderpoint CA : E. Denson], [1989?] [24] pages. (loose-leaf) : Illustrated. ;  First Supplement to the 1st edition. - Fall 1988 of: Denson's specialized catalog of plate number coils on first day covers, souvenir pages and ceremony programs copyrighted in 1988. Computer-generated typescript format.

Durland Standard Plate Number Catalog

Durland Standard plate number catalog /
Abington, Mass. ; Boston : Sterling Stamp Co., Inc. ; Warrington, Pa. ; Belleville, IL ; Reston, VA : Bureau Issues Association, Inc./United States Stamp Society, Spring 1950 edition - 32 pages. Winter 1950-51 edition - 40 pages. 1951 edition - pages. 1952 - 46 pages. Spring 1953 edition - 62 pages. 1954 edition - 64 pages. 1955 edition - 68 pages. 1957 edition - 74 pages. 1960 edition - 84 pages. 1961 edition - 96 pages. 1962 edition - 104 pages. 1963 edition - 107 pages. 1964 edition - 120 pages. 1965 edition - 132 pages. 1966 edition - 140 pages. 1967 edition - 152 pages. 1968 edition - 160 pages. 1969 edition- 168 pages. 1970 edition - 176 pages. 1971-72 edition - 184 pages. 1973 edition - 184 pages. 1974 edition - 184 pages. 1975 edition - 185 pages. 1976 edition - 191 pages. 1977 edition - 192 pages. 1978 edition - 196 pages. 1979 edition - 208 pages. 1980 edition - 208 pages. 1981 edition - 212 pages. 1984 edition - 256 pages. 1986 edition - 304 pages. 1990 edition- 320 pages. 1994 edition - 352 pages. 1997-1998 edition - x, 382 p. 2000 edition - 290 pages., pages. A1 - A155. <34> v. 2005 edition - 304 pages., A1 - A161: Illustrated ;  published from 1950 to 2005.

Imprint varies. Compilers and editors vary. Library holdings of the 1960 - 1981 editions. were compiled and edited by Vahe Nazar and G. William Patten ; the 1984 and 1986 editions were compiled and edited by the aforementioned and by George V.H. Godin ; the 1990 edition and 1994 edition were compiled and edited by George V.H. Godin ; the 1997-1998 and 2000 editions were compiled and edited by Kim D. Johnson assisted by W. Wallace Cleland and John L. Larson. The 2005 edition was compiled and edited by Kim D. Johnson, and W. Wallace Cleland. The 1997-1998 editions include an errata sheet. "In honor of the 50th Anniversary of the first Durland Catalog, and the 70th Anniversary of the Bureau Issues Association/United States Stamp Society, the Durland Standard Plate Number Catalog now lists and prices all U.S. postage stamps and Revenue stamps ... ."-- Back cover of 2000 edition. The 2005 edition includes revenues and other back of the book material.

Errors on US Postage Stamps, Stephen R. Datz

Errors on United States postage stamps / Catalogue of errors on U.S. postage stamps
Loveland, CO : Sanabria, c1996. ix, 148 pages. : Illustrated. ; Includes dealer section.

Catalogue of errors on U.S. postage stamps
Iola, WI : Krause Publications, c1997. 162 pages. :Illustrated.  Includes dealer advertising pages.

Catalogue of errors on U.S. postage stamps
Iola, WI : Krause Publications, c1998. 167 pages.   Illustrated. Includes dealer advertising pages.

Catalogue of errors on U.S. postage stamps /
Iola, WI : Krause Publications, c1999. 171 pages. : Illustrated. ; Includes dealer advertising pages.

Catalogue of errors on U.S. postage stamps /
Iola, WI : Krause Publications, c 2000. 176 pages. : Illustrated. ; Includes dealer advertising pages.

2002 Catalogue of errors on U.S. postage stamps / 11th Edition
Iola, WI : Krause Publications, c 2001. 176 pages. : Illustrated. ; Includes dealer advertising pages.

2003 Catalogue of errors on U.S. postage stamps / 12th Edition
Iola, WI : Krause Publications, c 2002. ??? pages. : Illustrated. ; Includes dealer advertising pages.

2005 Catalogue of errors on U.S. postage stamps / 13th Edition / (At head of title: Scott)
Sidney, OH : Scott Publishing Co., c 2005. 194 pages plus 14 page introduction. : Illustrated. ; Includes dealer advertising pages. Edited by James E. Kloetzel.

2006 Catalogue of errors on U.S. postage stamps / 14th Edition / (At head of title: Scott)
Sidney, OH : Scott Publishing Co., c 2006. 202 pages plus 14 page introduction. : Illustrated. ; Includes dealer advertising pages. Edited by James E. Kloetzel.

Krause-Minkus Catalog

Krause-Minkus Standard catalog of U.S. stamps / Minkus specialized American stamp catalog
Iola, WI : Krause Publications, Inc., 1998 edition/1st edition [Editors - Fred Bauman & George Cuhaj] (Listings 1845 - date) - x, 526 pages. The 1998 edition, with all new-format, continues Minkus Publications' catalogue published under the title: Minkus specialized American stamp catalog, with earlier editions being published under the title: Minkus new American stamp catalog. 1999 edition/Expanded, improved 2nd edition. [Editors - Fred Bauman & George Cuhaj] (Listings 1845 - date) - xiii, [5], 563 pages. 2000 edition/ 3rd edition (Listings 1845 - date) - xx, 615, [5] pages. 2001 edition/4th edition. (Listings 1845 - 2000) - xx, 697 pages. <4> v. : Illustrated. 2002 edition/5th edition, [Editor - Maurice D. Wozniak], 744 pages. Listings to 2001 : Illustrated. 2003 edition/6th edition, [Editor - Maurice D. Wozniak], 792 pages. Listings to 2002 : Illustrated. Begining in 2002, published under the title: Krause - Minkus Standard Catalog of U.S. Stamps. 2004 edition/7th edition, [Editor - Steven R. Unkrich], 816 pages. Listings to 2003 : Illustrated.

1995 Plate Number Coil Catalog    

Plate number coil catalog /
Somerset, NJ : Nazar Publications, Inc., c1994. 1 v. (in various pagings) : Illustrated. ;  Printing data taken from the plate-activity reports of the Bureau of Engraving and Printing (BEP) and several private printers--introduction. Title varies from earlier editions published under the title: Catalog of plate number coils. Includes bibliographical references. Includes errata and addendum sheet. Binding is Hardbound  and   spiral-bound.

Plate Number Coil Study Group, Stephen G. Esrati

Catalog of plate number coils /
Shaker Heights, OH : Plate Number Coil Study Group, c1987. 40 pages. : Illustrated., tables ; Cover title. "A publication of the Plate Number Coil Study Group"--cover. Data taken from plate activity reports of the Bureau of Engraving and Printing (BEP)--introduction. Updates for this catalog appear in The Plate Number. Includes bibliographical references and index. Includes Scarcity table and checklist for FDCs / by Ken Lawrence.

Catalog of plate number coils /
Shaker Heights, OH : Plate Number Coil Study Group, c1986. 56 pages. ;  Cover title. "A publication of the Plate Number Coil Study Group"--cover. Data taken from reports made to the U.S. Postal Service by the Bureau of Engraving and Printing--introduction. Updates for this catalog appear every other month in The Plate Number. Includes bibliographical references.

Catalog of plate number coils /
Shaker Heights, OH : Plate Number Coil Study Group], c1985. 36 pages. ;  Cover title. "A publication of the Plate Number Coil Study Group"--cover. Includes data taken from reports made to the U.S. Postal Service by the Bureau of Engraving and Printing.

Plate number coil catalog /
Shaker Heights, OH : S.G. Esrati, c1988. x, 50 pages. : Illustrated. ;  Cover title. "A publication of the Plate Number Coil Study Group"--cover. Includes data taken from reports made to the U.S. Postal Service by the Bureau of Engraving and Printing--introduction. Title varies from earlier editions published under the title: Catalog of plate number coils. Includes bibliographical references. Appendices include one on PNC labels.

Plate number coil catalog /
Shaker Heights, OH : S.G. Esrati, c1989. vi, 60 pages. : Illustrated. ;  Cover title. "A publication of the Plate Number Coil Study Group"--cover. Includes data taken from reports made to the U.S. Postal Service by the Bureau of Engraving and Printing--introduction. Title varies from earlier editions  published under the title: Catalog of plate number coils. Includes bibliographical references. Appendices include one on PNC labels.

Plate number coil catalog /
Shaker Heights, OH : S.G. Esrati, c1990. x, 66 pages. : Illustrated. ;  "A publication of the Plate Number Coil Study Group"--cover. Includes data taken from reports made to the U.S. Postal Service by the Bureau of Engraving and Printing--introduction. Title varies earlier editions published under the title: Catalog of plate number coils. Includes bibliographical references. Appendices include one on PNC labels.

Plate number coil catalog /
Shaker Heights, OH : S.G. Esrati, c1991. xii, 72 pages. : Illustrated. ;  A publication of the Plate Number Coil Study Groupages. Includes data taken from reports made to the U.S. Postal Service by the Bureau of Engraving and Printing--introduction. Title varies from  some earlier editions published under the title: Catalog of plate number coils. Includes bibliographical references. Appendices include one on PNC labels.

Scott Publishing Company, 1987

Check-list plate number coils / Scott check-list plate number coils
Sidney, OH : Scott Publishing Co., c1987. iv, 54 pages. : Illustrated.

Scott's Specialized Catalogues

Scott's specialized catalogue of United States stamps / Specialized catalogue of United States stamps / Scott specialized catalogue of United States stamps / Specialized catalogue of U.S. stamps & covers / Scott Specialized catalogue of United States stamps & covers /
New York ; Sidney, OH : Scott Publishing Co., 35th edition. 1957 36th edition. 1958 37th edition. 1959 38th edition. 1960 39th edition. 1961 40th edition. 1962 41st edition. 1963 42nd edition. 1964 43rd edition. 1965 44th edition. 1966 45th edition. 1967 46th edition. 1968 47th edition. 1969 48th edition. 1970 49th edition. 1971 50th edition. 1972 51st edition. 1973 52nd edition. 1974 53rd edition. 1975 54th edition. 1976 54th edition. (Limited Bicentennial edition.) 1976 55th edition. 1977 56th edition. 1978 57th edition. 1979 58th edition. 1980 59th edition. 1981 60th edition. 1982 61st edition. 1983 62nd edition. 1984 63rd edition. 1985 64th edition. 1986 65th edition. 1987 66th edition. 1988 67th edition. 1989 68th edition. 1990 69th edition. 1991 70th edition. 1992 71st edition. 1993 72nd edition. 1994 73rd edition. 1995 74th edition. 1996 75th edition. 1997 76th edition. 1998 77th edition. 1999 78th edition. 2000 79th edition. 2001 [80th] edition. 2002 Title and imprint vary. Beginning with the 77th edition in 1999, the cover title appears as: Specialized catalogue of United States stamps & covers (At head of title: Scott). On the title pages of the 80th edition, 2002 catalogue, the edition appears erroneously as: 79th edition. 2003 [81st] edition. 2004 [82nd] edition. 2005 [83rd] edition. 2006 [84th] edition, 1,024 pages. 1983-1995 edited by William W. Cummings, 1996-2006 edited by James E. Kloetzel.

Scott Standard Postage Stamp Catalogue - CD Version

Scott Standard postage stamp catalogue CD. United States, including back-of-the-book issues
Sidney, OH : Scott Publishing Co., 2002 CD Version (158th edition. of Catalogue) - 1A-19A, [1], 134 pages. <1> computer optical disc : Illustrated. (many in color) ; 4 3/4 in. Uses Adobe Acrobat as the operating software. Compatible on both Windows and Macintosh platforms. System requirements include 32MB of RAM (64MB recommended), 30MB of free hard disk space and 4x speed CD-ROM drive (16x recommended). The ability to print specific pages is available; however, downloading or copying specific stamp images or illustrations is not.

U.S. Pocket Stamp Catalogue        

Scott 1999 U.S. pocket stamp catalogue / Scott U.S. pocket stamp catalogue / U.S. pocket stamp catalogue / Scott pocket U.S. stamp catalogue & checklist / Pocket U.S. stamp catalogue & checklist / Scott U.S. pocket stamp catalogue & checklist / U.S. pocket stamp catalogue & checklist / Scott postage stamp catalogue & inventory checklist / Postage stamp catalogue & inventory checklist
Sidney, OH : Scott Publishing Co., c1998. [1A]-32A, 352 pages. : Illustrated. (chiefly color) ;  Title varies from earlier editions. The 1990 edition was published under the title: Scott 1990 pocket U.S. stamp catalogue & checklist. The 1987 edition was published under the title: Scott 1987 U.S. pocket stamp catalogue & checklist. The 1982 and 1983 editions were published under the title: Scott postage stamp catalogue & inventory checklist.


Other Publications

All About PNCs and Great Americans, Steve Esrati

Published quarterly each year from February 1996 till the present. Editor: Steve Esrati. Title changed to All about PNCs and Other Stuff in November 2000. News and information about PNCs and the Great American series, plus his price lists.

Coil Line, Harold Brown

Official publication of the Plate Number Coil Collectors Club (PNC3). Published monthly since May 1988.  Editors: 1988 - May 1990, Tom Maeder; June 1990 to November 2007, Harold Brown; December 2007 - December 2008, Todd Uebele, Sr.; January 2009 - September 2016, Ronald Blanks; October 2016 - August 2020, Vickie Canfield Peters; September 2020 - Present, Scott Walker. PNC News, Features and Charts, Letters to the Editor, Cover of the Month, Commercial Covers. Dealer ads.

The Plate Number (and Great Americans Review), Steve Esrati

Published six times each year from 1986 till November 1995. Editor: Steve Esrati. Title changed to The Plate Number and Great Americans Review in January 1993. News and information about PNCs and the Great American series, plus dealer ads and his price lists. The complete 10 year run is now available online in the 'Reference' section.

The Postal Bulletin

Announcements and technical data of new stamp issues. Published bi-weekly by the United States Postal Service in print and online editions.


Annual Releases

Linn's U.S. Stamp Yearbook, George Amick

Linn's U.S. stamp yearbook /
Sidney, OH : Linn's Stamp News.

1983 edition - 237 pages : Illustrated
1984 edition - 285 pages : Illustrated.
1985 edition - 302 pages : Illustrated.
1986 edition - 238 pages : Illustrated.
1987 edition - 255 pages : Illustrated.
1988 edition - 384 pages : Illustrated.
1989 edition - 352 pages : Illustrated.
1990 edition - 335 pages : Illustrated.
1991 edition - 448 pages : Illustrated.
1992 edition - 416 pages : Illustrated.
1993 edition - 432 pages : Illustrated.
1994 edition - 512 pages : Illustrated.
1995 edition - 576 pages : Illustrated.
1996 edition - 456 pages : Illustrated.
1997 edition - 384 pages : Illustrated.
1998 edition - 504 pages : Illustrated.
1999 edition - 512 pages : Illustrated.
2000 edition - 440 pages : Illustrated.
2001 edition - 424 pages : Illustrated.
2002 edition - 432 pages : Illustrated.
2003 edition - 360 pages : Illustrated.
2005 edition - 392 pages : Illustrated.
2006 edition - 463 pages : Illustrated.
2007 edition - 464 pages : Illustrated.
2008 edition - 432 pages : Illustrated.
2009 edition - 416 pages : Illustrated.
2010 edition - 320 pages : Illustrated.

The 1983-1987 editions. by Fred Boughner ; 1988-2010 editions by George Amick.

The Postal Service Guide to U.S. Stamps

The Postal Service Guide to U.S. stamps /
New York : HarperResource, HarperCollins Publishers, c2000. 571, [2] pages. : Illustrated. (chiefly color) ; Includes subject index. Earlier editions published under the titles: United States Postal Service stamps & stories: the encyclopedia of U.S. stamps (6th-8th eds.), United States Postal Service stamps & stories (5th edition.), and United States stamps & stories (1st-4th eds.) Includes section on new issues of 2000. Includes resource section listing philatelic organizations, publications, museums, and official philatelic centers in every state.


Purple Machine Cancels

The Purple Machine Cancel Handbook, Robert Washburn and Carl R. Ditsch, 1994

The Purple machine cancel handbook /
[Skowhegan, ME : R.M. Washburn], c1994. 1 v. : Illustrated. ;  Includes index. Includes Appendix: Plate number coils known to be cancelled by purple machine cancel. Photocopy format.

PMCs: A Guide To Collecting Purple Machine Cancels, Robert Washburn, 2000

PMCs: a guide to collecting purple machine cancels /
Skowhegan, ME (P.O. Box 840, Skowhegan, 04976-0840) : R.M. Washburn, c2000. 81 leaves : Illustrated. ;  Completely new revision of the information contained in The purple machine cancel handbook by Robert M. Washburn and Carl Ditsch published in 1994. Includes Appendix: U.S. plate number coils known to be cancelled by purple machine cancels. Bibliographical references: leaf 81. Limited printing of 250 copies. Includes author's want list of PNC commercial covers. Photocopy format.

Note: Thanks to the American Philatelic Research Library for providing much of the descriptive matter on this page.