The tetradrachm (Greek: τετράδραχμον, tetrádrakhmon) was an Ancient Greek silver coin equivalent to four drachmae. In Athens it replaced the earlier "heraldic" type of didrachms and it was in wide circulation from c. 510 to c. 38 BC.

The date of a genuine Gela tetradrachm is somewhere around 466-413 BC. This is a replica (COPY) of an Greek silver tetradrachm from Gela (Sicily).

This Gela tetradrachm particular copy was produced as an advertisement for a book on Ancient Greece and was sent to thousands of addresses glued to a paper ad.

The bull-man is the river god Gelas

The charioteer is sometimes commanding a biga (a chariot drawn by two horses), sometimes a quadriga (a chariot drawn by four horses). The horses are always galloping right, being crowned by Nike (the Greek personification of victory) flying above.