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1922 Imperforate issues Continuing a practice that began with the 1902-03 series, the Post Office provided imperforate sheet stamps to coil manufacturers.
1922 Coil issues The Post Office also issued its own coil stamps. The plate numbers were trimmed away during the printing and coiling process. Occasionally, the cutting process was sufficiently off-center that some portion of the plate number is still visible.
Rotary Press Endwise Coil issues (perf. 10 horizontally)
1923-26 Regular issue - coil waste Stamps left over from the printing of 1¢ and 2¢ coils were perforated on the remaining two sides and sold to the public.
1927 Imperforate Harding (rotary press) The post office issued imperforate stamps for vending machine companies. These companies pasted them together in strips and privately perforated them (such as Schermack type III, with the oblongs), thus making coil rolls. The coils were then used to affix the stamps by machine to business mail. When one company ran out of the imperforate flat plate 1-1/2¢ Hardings (Scott 576) and requested more, the post office, which by then was no longer printing flat plate stamps, sent imperforate rotary press stamps instead, seeing no difference. The rotary stamps were in smaller sheets, doubling the cutting and pasting work for the private company, but the gutters on the rotary press sheets threw off the perforations. At around the same time, Pitney-Bowes was authorized to use meters. The combination of problems and the new competition ruined the private vending and affixing industry, and imperforate stamps have not been intentionally issued since except for the Farleys and occasional souvenir sheets. Background information courtesy of Lawrence H. Cohen
1928 "Molly Pitcher" overprint In an effort to save money in designing and engraving, in a couple of instances the post office decided to overprint the common 2¢ and 5¢ definitives to provide a quick "commemorative" stamp. The "Molly Pitcher" stamp was supposed to commemorate the 150th anniversary of the 1778 Revolutionary battle of Monmouth, New Jersey.
1928 Hawaii overprints
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This page last updated March 22, 2007. Web site content Copyright ©2003-2011 American Plate Number Single Society. All rights reserved.
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Scott
575, 1¢, Plate number
14159 L
Scott
576, 1-1/2¢, Plate number
16870 B
Scott
577, 2¢, Plate number
14179 L
Scott
597, 1¢,
partial plate
number [most likely] 20043 at top
Scott
597 var, 1¢ precanceled,
partial plate
number 19759 (with star) at top
Scott
598, 1-1/2¢ (profile)
precancel,
partial plate
number 18821 at top.jpg)
Scott
599, 2¢, partial
plate number 20001.jpg)
Scott
599, 2¢, partial
plate number 21012
Scott
599, 2¢ used,
partial plate number 20225
Scott
599A, 2¢ Washington Type
II, used,
partial plate
number 19749 at top
Scott
687, 4¢
Taft,
partial plate
number 20135 at bottom
Scott
602, 5¢,
partial plate
number 16443 at top
Scott
723, 6¢,
partial plate
number 20968 at top
Scott
604, 1¢,
partial plate
number 20357 at right
Scott
606, 2¢, used,
partial plate
number 19153 at left
Scott
578, 1¢ Flat plate
printing, perf. 11 x 10, Plate number 14573 T
Scott
579, 2¢ Flat plate
printing, perf. 11 x 10, Plate number 14342 T
Scott
595, 2¢ Rotary press
printing, perf. 11, Plate number 14126 T
Scott
631, 1-1/2¢,
Plate number 18413 LL
Scott
646, 2¢, Plate number
19071 UR, with a particularly runny overprint
Scott
647, 2¢, Plate number
18983 LL
Scott
648, 5¢, Plate number
18907 LR