GB-Penny Red - Green paper on back is possible?

The output of Perkins, Bacon from 1840 to 1880.
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asmodeus
Posts: 86
Joined: Mon Sep 10, 2007 6:00 pm

GB-Penny Red - Green paper on back is possible?

Post by asmodeus »

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Hello to all!

A stamp collector from Canada needs your professional advice! I hope you can help hinm out...

Question:
Hi,

I have this stamp and there are lot of green dots on back. Some part are green too. Is it possible or it is damage?
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