SIGNATURE POSITIONS
How to identify the position of the authentication signature on the back of a stamp
How to read the positions
The position of the signature on the back of a stamp provides an immediate indication of the condition of the item. In my expertising system, its placement follows precise criteria that distinguish stamps in perfect condition from defective ones and determine their classification for expertising purposes.
Mint never hinged
perfect condition
Mint never hinged
good condition
❖
Mint with original gum or used
perfect condition
Mint with original gum or used
good condition
❖
Mint without gum
perfect condition
Mint without gum
good condition
For rare but repaired stamps, photographic certificates attesting to their authenticity are available on request, without the signature being applied.
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