Discussion - Member to Member Sales - Research Center
Discussion - Member to Member Sales - Research Center
Thank you
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Possibly to test the colour fastness in the presence of light over various duration hours.
Just a guess from the wording and open part of the folder.
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It is listed in the Scott US Specialized catalog as a test stamp. Quite a scarce item.
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Thank you Smuggie,
A pleasant surprise. Would never have guessed 1970's. Back to see what else is hiding in the box
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03:25:25pm
Can someone shed some light on what this is? m It appears it was used to test the ink or color in some way. Thoughts appreciated. Left to right - front, open, back
Thank you
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re: Interesting test piece
Possibly to test the colour fastness in the presence of light over various duration hours.
Just a guess from the wording and open part of the folder.
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this post
re: Interesting test piece
It is listed in the Scott US Specialized catalog as a test stamp. Quite a scarce item.
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likes this post.
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07:29:08pm
re: Interesting test piece
Thank you Smuggie,
A pleasant surprise. Would never have guessed 1970's. Back to see what else is hiding in the box
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