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1922 Flat Plate Imperforate issues Continuing a practice that began with the 1902-03 series, the Post Office provided imperforate sheet stamps to coil manufacturers.
Scott 575 var, 1¢ Franklin, coil leader with Schermack Type III private perforations, plate number 14158
Scott 575 var, 1¢ Franklin, Schermack Type III private perforations from pane before slicing into coil strips, plate number F14159
Scott 577 var, 2¢ Washington, Schermack Type III private perforations from pane before slicing into coil strips, plate number F14197
Some collectors consider the 2¢ Harding as part of, or at least very closely associated with, the Fourth Bureau Series due to the design similarities and the fact that the identical portrait was used for the 1-1/2¢ denomination soon afterward. For a special study of the 2¢ Harding varieties, check out the Harding page.
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 Horizontal Coil issues (perf. 10 vertically)
Rotary Press Endwise or Vertical Coil issues (perf. 10 horizontally)
1923-26 Regular issue - rotary press 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.
No plate number example is known of Scott 594, the 1¢ perf 11 coil waste issue.
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, occasional souvenir sheets, and the "die cutting omitted" experiment with press sheets in the early 2000's. 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, Scott 634 and 637, 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 The "Hawaii" overprints commemorate the 150th anniversary of the 1778 European discovery of Hawaii by Captain Cook. Britain's Union Jack is part of the Hawaii state flag in commemoration of this event.
Image courtesy of Bill Langs
1928 Canal Zone overprints Denominations from 1/2¢ to $1.00 were overprinted for use in the Canal Zone. Two overprint types were used on flat plate issues, plus a handful of rotary press issues. See examples at the Canal Zone page. 1929 Kansas-Nebraska overprints Denominations from 1¢ to 10¢ were overprinted for use in two states which had experienced a lot of postal robberies. The idea was to make the stolen stamps harder to re-sell in other states. It was not successful, and was not expanded to additional states. Despite the overprints, the stamps were valid for mailings throughout the United States. See examples at the Kansas-Nebraska page.
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This page last updated August 10, 2020.
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Scott
575, 1¢ Franklin, plate number
14159
Scott
575 var, 1¢ Franklin, Bureau precancel, plate number
14159
Scott
576, 1-1/2¢ Harding profile, plate number
16870
Scott
576, 1-1/2¢ Harding profile, Bureau precancel, plate number
16863
Scott
577, 2¢, plate number
14179
Scott
611, 2¢ Harding, plate number
15027
Scott
597, 1¢ Franklin,
partial plate
number 19759
Scott
597 var, 1¢ Bureau precancel,
partial plate
number 19759 (with star)
Scott
598, 1-1/2¢ Harding (profile), partial plate
number 16909
Scott
598 var, 1-1/2¢ Harding (profile)
precancel,
partial plate
number 18821
Scott
686, 1-1/2¢ Harding (full-face), partial plate
number 20389
Scott
686 var, 1-1/2¢ Bureau precancel, partial plate
number 20388
Scott
599, 2¢ Washinton Type I, partial
plate number 20001 at bottom
Scott
599, 2¢ Washington Type I, partial
plate number 20349 at top
Scott
599 var, 2¢ Washington Type I, Bureau precancel, partial
plate number 18040 at top
Scott
599A, 2¢ Washington Type
II, partial plate
number 19749
Scott
600, 3¢ Lincoln, partial plate
number 18808
Scott
600 var, 3¢ Bureau precancel, partial plate
number 17909
Scott
687, 4¢ Taft,
partial plate
number 20135
Scott
602, 5¢ Teddy Roosevelt,
partial plate
number 16443
Scott
602 var, 5¢ Bureau precancel, partial plate
number 17946
Scott
723, 6¢ Garfield,
partial plate
number 20968
Scott
603, 10¢ Monroe, partial plate
number 16340
Scott
604, 1¢,
partial plate
number 20357
Scott
606, 2¢, partial plate
number 19153
Scott
578, 1¢, perf. 11 x 10, plate number 14573
Scott
579, 2¢, perf. 11 x 10, plate number 14342
Scott
595, 2¢, perf. 11, plate number 14126
Scott
631, 1-1/2¢,
plate number 18413
Scott
646, 2¢, plate number
19071, with a particularly runny overprint
Scott
646 var, local precancel, plate number
19070
Scott
647, 2¢, plate number
18983
Scott
647 var, overprint high and to the left, plate number
18984
Scott
647 var, 2¢, dirty overprint mat, plate number
19055
Scott
648, 5¢, plate number
18907
.
