Old coins are a type of currency that have been used for centuries. An ECU (3 letters) is a French gold coin that was first issued in the late 17th century. A DUCAT (5 letters) is an Italian gold coin that was first issued in the 13th century. An EAGLE (5 letters) is an American gold coin that was first issued in 1795. A FLORIN (6 letters) is a British gold coin that was first issued in 1849. An EAGLEEAGLE (10 letters) is a double EAGLE, which is an American gold coin that was first issued in 1850.