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United States/Stamps : ID Help of US 634 by Perf

 

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yybstamps

09 Dec 2017
09:50:28pm
Image Not Found Image Not Found

Upload please find an example of difficult to ID US634 by perforation. 11 x 10 1/2 is the

perf of US634 in Scott Cat. However the perfs of top and bottom are not exactly 11 by gauge

measurement and even eyes balling. In order to find answer, i scan my stamp both sides by

300dpi then measure the perf from back scanned stamp (more clear) by a special designed

software. The results shown 11 1/4 x 10 1/2. I believe this is more precise but my question

is does 11 1/4 really matters to identify US634 than 11? Your commends are greatly

appreciated.

Best

Peter



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51Studebaker
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Dialysis, damned if you do...dead if you don't

10 Dec 2017
06:22:13am
re: ID Help of US 634 by Perf

No, it does not matter; Scott ‘rounds off’ the perforations in their catalog. You can always check the perfs by comparing against other stamps with a known perforation (there are plenty of US stamps which only came in perf 11).
Don

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"Current Score... Don 1 - Cancer 0"

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Author/Postings
yybstamps

09 Dec 2017
09:50:28pm

Image Not Found Image Not Found

Upload please find an example of difficult to ID US634 by perforation. 11 x 10 1/2 is the

perf of US634 in Scott Cat. However the perfs of top and bottom are not exactly 11 by gauge

measurement and even eyes balling. In order to find answer, i scan my stamp both sides by

300dpi then measure the perf from back scanned stamp (more clear) by a special designed

software. The results shown 11 1/4 x 10 1/2. I believe this is more precise but my question

is does 11 1/4 really matters to identify US634 than 11? Your commends are greatly

appreciated.

Best

Peter



Like
Login to Like
this post
Members Picture
51Studebaker

Dialysis, damned if you do...dead if you don't
10 Dec 2017
06:22:13am

re: ID Help of US 634 by Perf

No, it does not matter; Scott ‘rounds off’ the perforations in their catalog. You can always check the perfs by comparing against other stamps with a known perforation (there are plenty of US stamps which only came in perf 11).
Don

Like
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this post

"Current Score... Don 1 - Cancer 0"

stampsmarter.org
        

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