Welsh-born actor Catherine Zeta-Jones has become the victim of a scam by stamp hoaxers.
Zeta-Jones, 31, who recently married Michael Douglas, was set to feature on a stamp in a little-known Russian republic where officials were said to have fallen in love with her.
But the remote Republic of Khakassia was not entitled to issue postage stamps, stamp expert Peter Jennings said.
"These stamps are bogus - they have no postal validity and they do great harm to the study of stamp collecting," Jennings, a Fellow of the Royal Philatelic Society London, said.
"In effect they are just labels. This is a scam to make money out of unsuspecting collectors worldwide who are tricked into buying them.
"Khakassia is certainly not affiliated to the Universal Postal Union and any stamps issued are therefore invalid. The people behind this, who are not Russian, just put a famous face on the 'stamp' in the hope that it will sell."
Zeta-Jones, who once played Catherine the Great in a German film, stars with her husband in the Oscar-nominated film Traffic.