Quoting from my FAQ site: " Many collectors enjoy A Dictionary of Roman Coins by Seth Stevenson. A massive 929-page work published in 1889 (but mostly written c. 1850), it has been reprinted and is not hard to find. It has a quaint 19th century style more than compensated for by its extremely thorough listing of types, legends, attributes, and any other term that might come up in conjunction with Roman coins. Melville-Jones's dictionary, mentioned above, does not attempt to list legends and is more up to date, but Stevenson's book is undoubtedly fun to read." I have a very nice copy with the former owner's name on the inside front cover, but otherwise very nice. [$25+$5 SOLD (it is large) media-mail shipping in the US]
