As the curved plates of the Rotary press made the stamps slightly larger it is relatively easy to discern which stamp is flat plate and which is a rotary ...
On June 30, 1914, the US issued its very first stamp printed on the rotary press. It’s also the only imperforate US rotary press coil. Prior to 1914, postage stamps were printed using the flat plate method. Sheets printed by this process contained 20 rows of stamps with 20 stamps in each row.
The rotary press could print 1,000 stamps at a cost of .053 cents, compared to the conventional flat bed press cost of .08 cents. This difference of .027 cents is significant when one takes into consideration the fact that the Bureau printed millions of stamps each day.
Rather than “stamping” the design, the rotary press was capable of continually “rolling” the stamp design along a length of paper known as a “web.” His ...
An easy method to sort flat plate and rotary press stamps in quantity is to cut a damaged common flat plate stamp in half and use it as a template. Perf 12 ...
Both the Flat Plate and Rotary Press printings utilized the same engraved master dies to transfer the design from the master to a soft metal printing plate.
Oct 25, 2011 · The Stickney rotary press appeared to have been made by The Universal Telegraphic Company, Baltimore, MD. ("The History of the Bureau of Engraving and Printing 1862-1962", Michael Plant, U.S. Treasury Department, 1962, page 80, reprinted by Quarterman Publications, 1979) Send note to Staff.
This video is meant for new stamp collectors who struggle to identify the difference between flat plate press and rotary press printed stamps. We go over how...
The faster Rotary Press utilized a revolving rotary cylinder that printed onto a continuous roll of paper that was fed through the press. Both the Flat Plate and Rotary Press printings utilized the same engraved master dies to transfer the design from the master to a soft metal printing plate.