Is this from the block of ten where two values were each printed using five different printing methods?
If that's the case it's probably easiest to compare the single stamp against a complete block to tell which stamp it is.
help wanted ...
no phospor var ... what print method. paper is glossy, silicone coated ?
re: FRANCE Ciappa -
Is this from the block of ten where two values were each printed using five different printing methods?
If that's the case it's probably easiest to compare the single stamp against a complete block to tell which stamp it is.