No one denies that they exist. In bronze or brass like the one in Wien.
'The
obverse shows two lovers in a bed, beneath which we see a little boy and a
jug of wine. The
reverse shows wreaths of leaves and of dots surrounding the figure XIII.
It seems that in the early first century AD the
Roman mint had other duties besides striking coins. They seem also to have produced coin-like objects, among them, at least until about AD 50, brass corn-coins. These show their value (I to
XVI) on one, and a bushel on the other
side, and were used to ensure a smooth distribution of free
corn. Others show the same values on the
reverse, but the somewhat explicit picture on the
obverse shows that they were entrance-coins to a brothel. The Coin
Collection in
Vienna houses one of the most important
collections of these delicate and extreemly
rare pieces. '
I can understand that you don't want to believe you have a
replica.
Ask the people in Wien, at worst pay for registered shipping to have them examine it in hand.
But a local coin dealer specializing in
ancient coins should be enough.
Andreas