Available Now! Roman Coins & Their Values Vol. IV by David R. Sear. The fourth volume of the fully revised and expanded general catalogue of Roman coins extends coverage of the Imperial series from the accession of Diocletian in A.D. 284 down to the death of Constantine the Great more than half a century later.[p]The introductory articles are again included in this volume and, as with Volumes I-III, the Imperial biographies have been entirely rewritten and enlarged.[p]There has been a major expansion of the catalogue listings and special emphasis has been placed on the precise form of the mint marks and the date of issue of each catalogue entry. To order, go to www.freemanandsear.com and click on the books icon.