Certificate of Authenticity or otherwise issued by an expert committee of the Royal Philatelic Society of London.
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I want to expertise a stamp. How to proceed.
HI
Can you help me please to obtain a certificate about a stamp that I have. The stamp is British Guaina 1862 4c Blue, SG 122 in the Stanley Gibbons book..I want to sell the stamp at some point,so can you guide me on how to procced.
Alan Harris