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USA 1923 Classic Harding Rotary Stamp

 
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United States
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Posted 08/08/2022   11:06 pm  Show Profile Bookmark this topic Add pastime8469 to your friends list Get a Link to this Message
Hi everyone, I am new to this community, and I would like to know what the members opinions would be, on what I believe is the USA 1923 Scott 613 perf 11 Rotary press stamp that is provided in the images. I would much appreciate any input about this stamp. Thank you ahead of time, for any responses.



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Posted 08/09/2022   12:16 am  Show Profile Bookmark this reply Add rogdcam to your friends list  Get a Link to this Reply
The design length difference is in the wrong direction to be a 613. Sorry.


Quote:
The listing in the Scott Specialized Catalogue of United States Stamps and Covers is a good starting point. The catalog notes that the design of the flat-plate variety measures 19¼ millimeters by 22¼mm.

Because of the way the images were stretched when the plates were bent (or curved) to form the semicircular plates attached to the rotary drum, the rotary-press variety measures 19¼ by 22½mm.

So a ¼mm measurement the long way makes a difference of $39,999.75? Yes.

But sometimes the difference is even less than ¼mm. There can be some variation resulting from paper stretch and shrinkage. The 22¼mm length for flat-plate examples and the 22½mm measurement for rotary-printed stamps are averages.

It is important to remember that authenticated rotary-printed stamps measure as short as 22.375mm but will always be longer than 22¼mm.

A good way to check for this characteristic is to cut a damaged gauge 11 flat-plate stamp in half vertically. Take the left-hand piece and use it to identify stamps that are long enough to be rotaries by placing the half-stamp against your gauge 11 candidates.

Anything longer than the flat-plate stamp needs to be checked further.

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