Philatelic Forgeries
Stamps of Turkey, especially the nineteenth-century issues, have been extensively forged for the philatelic market, including both rare and common issues. As Fernand Serrane, one of the great experts in stamp forgeries, warned, "Forged overprints pullulate; all the more reason why one should avoid involvement". A number of philatelists have published studies of the forgeries of Turkey.
Read more about this topic: Postage Stamps And Postal History Of Turkey