Sear, D. Roman Coins and Their Values. Volume IV: The Tetrarchies and the Rise of the House of Constantine...A.D. 284-337. Detailed coverage of this evolving era of Roman coinage and history that saw the rise of Christianity. 550 pages, photos and detailed descriptions in text, bibliography, index. Published 2011. Hard cover. Dust jacket. (List price: $70. Current Amazon price: $49.81). As new.