Coins

Coin Production in the Ancient Greek World (Art Institute of Chicago)
Coin Production in the Roman World (Art Institute of Chicago)

Further Reading

Grierson, Philip. Byzantine Coinage, 2nd ed. Dumbarton Oaks Byzantine Collection Publications. Washington, DC: Dumbarton Oaks, Trustees for Harvard University, 1999.

Grierson, Philip. Numismatics. Oxford: Oxford University Press, 1975. [See Professor Hostetler for a PDF, or you can find a physical copy on OhioLink.]