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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.

Scott 575, 1, Plate number 14159 L

Scott 576, 1-1/2, Plate number 16870 B

Scott 577, 2, Plate number 14179 L


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.

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

Scott 599, 2, partial plate number 20001

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


Rotary Press Endwise Coil issues (perf. 10 horizontally)

Scott 604, 1, partial plate number 20357 at right

Scott 606, 2, used, partial plate number 19153 at left


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. 

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


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

Scott 631, 1-1/2, Plate number 18413 LL


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.

Scott 646, 2, Plate number 19071 UR, with a particularly runny overprint


1928 Hawaii overprints

Scott 647, 2, Plate number 18983 LL

Scott 648, 5, Plate number 18907 LR


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This page last updated March 22, 2007.

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