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.