I have a two headed Persian coin that was issued in 1977 or 78 (don't remember which) in celebration of 50 years of the Pahlavi Dynasty in Iran. It features the first Shah of Iran on one side and the second Shah on the other. It is a 20 toman piece (worth a couple cents on the face value). I don't know if these were removed from circulation after the revolution or not so I have no idea what it may be worth. Does anyone have any idea?
Howdy Linda Marie - Welcome to the Forum !! I can't be sure but i think the coin you have is a 1978 20 rials. If so, value ranges from $4 in Fine to $13.50 in Uncirculated.