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Question On A US A140 3 Washington

 
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United States
71 Posts
Posted 01/30/2023   4:59 pm  Show Profile Bookmark this topic Add papa0802 to your friends list Get a Link to this Message



While the Perfin has obscured some of the design, I have identified this as A140, type II, flat press. What is baffling me is its size - 18.7mm wide (normal), but only 21.5mm high. Of course, flat plate is normally 22mm high and rotary press 22.5-22.75mm high. Of the many in this series I have viewed, this is the first I've seen with such a short height, so I'm looking for some guidance.
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Posted 01/30/2023   5:06 pm  Show Profile Bookmark this reply Add John Becker to your friends list  Get a Link to this Reply
I would be looking at the offset printings, Scott 529 or 530.
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United States
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Posted 01/30/2023   5:17 pm  Show Profile Bookmark this reply Add revcollector to your friends list  Get a Link to this Reply
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United States
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Posted 01/30/2023   5:27 pm  Show Profile Bookmark this reply Add mootermutt987 to your friends list  Get a Link to this Reply
The offset printings always seem to get overlooked. Once you identify a few, though, the color and appearance compared to the flat and rotary press issues will make them unmistakeable.
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United States
71 Posts
Posted 01/30/2023   7:39 pm  Show Profile Bookmark this reply Add papa0802 to your friends list  Get a Link to this Reply
Thanks for that! While the Identifier of Definitive Issues section of the catalogue has a section contrasting Flat Bed and Rotary Press stamps, it has a dearth of information on offset printing. The only thing I found on line was "coarser and less detailed than flat or rotary. Also, the ink lies flat on the surface." I've found nothing on offset stamp dimensions, so anything y'all can provide would be greatly appreciated!
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Posted 01/30/2023   7:50 pm  Show Profile Bookmark this reply Add John Becker to your friends list  Get a Link to this Reply
Ignore the dimensions until after thoroughly examining the other features like type, perforation rate, and watermark (if applicable). With a little experience, you will find that offset stamps "just look different" as mootermutt noted, with no size measurement ever needed.
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113 Posts
Posted 01/30/2023   11:15 pm  Show Profile Bookmark this reply Add caspian65 to your friends list  Get a Link to this Reply
Take a piece of tin foil and place it over the stamp. Rub the foil. If an impression of the design doesn't show, it's an offset printing... 529 or 530.
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