Click on the image for a larger view.
25¢ Flag Over Yosemite (BEP)
Water-Activated Coils of 100, 500, 3000 and 10,000
Scott# 2280 Plate # 1, 2, 3, 4, 5, 7, 8, 9 (Small and/or Large Block Tagged)
Scott# 2280a Plate # 1, 2, 3, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15 (Embedded Phosphor Paper-Mottled Tagging)
Scott# 2280b Plate # 2, 3, 4, 5, 7, 8, 9 (Imperf - Large Block Tagged)
Scott# 2280c Plate # 2, 3, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15 (Imperf - Embedded Phosphor Paper)
Scott# 2280d Plate # 7, 8, 9 (Tagging Omitted)
Scott# 2280e Plate # 5, 6, 15 (Black Trees) See Varieties below
Scott# 2280f Plate # 9, 14 (Imperf Between - Embedded Phosphor Paper)
Series American Flag
Issue Date & City May 20, 1988, Yosemite National Park, California
Nationwide Sale May 21, 1988
Designer Peter Cocci (BEP)
Art Director Joe Brockert (USPS)
Typographer Bradbury Thompson (BEP)
Modeler Peter Cocci (BEP)
Engravers Thomas Hipschen, picture, Dennis Brown, lettering (Both BEP)
To Press / Initial Quantity Probably Late 1987 - Early 1988 / 5,000,000
Coil Sizes (#2280) 100, 500, 3000, (#2280a) 100, 500, 3000, 10,000
Printer Bureau of Engraving and Printing, Washington, DC.
Press B Press (701) - Coils of 500 and 3,000
C Press (901) - Coils of 100
Process Intaglio
Where Printed Bureau of Engraving and Printing, Washington, DC.
Where Processed Bureau of Engraving and Printing, Washington, DC.
Plate Size & Interval B Press - 936 (18 x 52) stamps per revolution / plate # every 52 stamps
C Press - 960 (20 x 48) stamps per revolution / plate # every 48 stamps
Paper & Gum Type I and Prephosphored, Water-Activated
Tagging Type Small and Large Block Tagging / Embedded Phosphor, Mottled Tagging / Untagged Error
Perf Gauge 9.75 Vertically
Colors Red, Blue, Green
Overall Size (w x h) apx. 0.87 x 0.96 in. / 22.1 x 24.4 mm
Earliest Known Use May 20, 1988
Varieties Imperforate / Tagging Omitted / Color contamination
Varieties Black Trees with 'Ski Slope'.  Click here for a scan.