There is a growing segment of numismatics (coin collecting) that specializes in ancient and medieval coinage. A surprising number of these coins still exist, and modern cleaning and conservation methods are revealing their beauty and wonder. You can actually hold coins from ancient Greece and Rome in your hand, and add old, old coins from Bible times, and even before, to your collection. Two of our favorite dealer sites for such coins are:
Many of these coins are very afforadable, and all are extremely interesting.
Jeff's coin is a replica (COPY) of an Greek silver tetradrachm from Gela (Sicily). Since it is a copy, it is worth only small amounts. You can find these on dealer sites and on eBay for $10 US dollars or so. Were it real, it could easily fetch 100s, even 1000s, of dollars.
Some interesting tid bits about Jeff's coin (gleaned from the Internet) are:
The bull-man is the river god Gelas
The chariot rider is Quadriga, galloping right, with Nike flying above two crown horses
The date is somewhere around 466-413 BC
You can see several other genuine coins like this at this link.
One online collect thinks that many coins like this were manufactured recently and distributed in the US to promote a Greek book