Different stamps?

daveg28
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Different stamps? Oct 15, 2017 14:26:10 GMT Beryllium Guy likes this

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Post by daveg28 on Oct 15, 2017 14:26:10 GMT

So, at the suggestion of tomiselsj, I present this scan to see if anyone can tell me if these are different or not. the stamp on the left appears taller. Could one be rotary and the other be flat press? I welcome any input. thanks!

iswscwebmaster Member Posts: 832 What I collect: the world	Different stamps? Oct 15, 2017 16:36:14 GMT Beryllium Guy likes this Quote Select Post Deselect Post Link to Post Back to Top Post by iswscwebmaster on Oct 15, 2017 16:36:14 GMT I am looking at mt Darnell catalogue and there is a note at the end of the Admiral section that states there was wet and dry printing that results in variations in size for the issues.
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Deleted Deleted Member Posts: 0	Different stamps? Oct 15, 2017 16:55:06 GMT iswscwebmaster and Beryllium Guy like this Quote Select Post Deselect Post Link to Post Back to Top Post by Deleted on Oct 15, 2017 16:55:06 GMT Many Admirals have wet/dry printing but not this one apparently.
	Last Edit: Oct 15, 2017 17:01:31 GMT by Deleted

tomiseksj
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Different stamps? Oct 15, 2017 18:07:57 GMT Mick, iswscwebmaster, and 1 more like this

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Post by tomiseksj on Oct 15, 2017 18:07:57 GMT

The vertical dimension of the design appears to be the same on both stamps; however, the separation between the horizontal rows of perforations is much greater on the stamp at left, giving the appearance of a "taller" stamp.

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tomiseksj
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Different stamps? Oct 15, 2017 20:28:07 GMT Beryllium Guy likes this

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Post by tomiseksj on Oct 15, 2017 20:28:07 GMT

Another explanation for a variance in the design dimensions of wet-printed stamps is provided in this excerpt from Janet Klug's article "What's the difference between dry printing and wet printing?" published in Linn's Stamp News on April 23, 2012:

...The high-speed production was enabled by a simple change in the printing process.

Paper was dampened prior to being run through the printing press up until the time of highly mechanized printing. There was good reason to do this. Dampening the paper softened it a bit and made the ink adhere better. But the added moisture made the stamp image not quite as crisp as it could have been.

Additionally, a bigger problem was that as the stamps dried they would shrink. Sometimes the shrinking was negligible, other times it was significant...

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Different stamps? Oct 15, 2017 20:51:47 GMT Beryllium Guy likes this

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Post by Anping on Oct 15, 2017 20:51:47 GMT

Oct 15, 2017 18:07:57 GMT tomiseksj said:

The vertical dimension of the design appears to be the same on both stamps; however, the separation between the horizontal rows of perforations is much greater on the stamp at left, giving the appearance of a "taller" stamp.

So is there an explanation for this increased separation? A bottom marginal row perhaps?

Last Edit: Oct 15, 2017 20:52:14 GMT by Anping

tomiseksj Moderator Woodbridge, Virginia, USA Posts: 6,263 What I collect: Worldwide stamps/covers, Cinderellas, Ohio Prepaid Sales Tax Receipts, U.S. WWII Ration ephemera	Different stamps? Oct 16, 2017 10:55:06 GMT Beryllium Guy likes this Quote Select Post Deselect Post Link to Post Back to Top Post by tomiseksj on Oct 16, 2017 10:55:06 GMT Oct 15, 2017 20:51:47 GMT Anping said: So is there an explanation for this increased separation? A bottom marginal row perhaps? An excellent question that I hope one of our Canada experts will be able to answer.
	Steve Tomisek APS Member #130102 State Revenue Society Member #1570 American Tax Token Society #R-648 Society of Ration Token Collectors #R-1261 Chapter 1591 APS Ambassador Write for the Newsletter; vote for your favorites! Join America's Stamp Club at www.stamps.org

Post by daveg28 on Oct 15, 2017 14:26:10 GMT

Post by iswscwebmaster on Oct 15, 2017 16:36:14 GMT

Post by Deleted on Oct 15, 2017 16:55:06 GMT

Post by tomiseksj on Oct 15, 2017 18:07:57 GMT

Post by tomiseksj on Oct 15, 2017 20:28:07 GMT

Post by Anping on Oct 15, 2017 20:51:47 GMT

Post by tomiseksj on Oct 16, 2017 10:55:06 GMT