Sear D., Roman Coins and Their Values Volume IV – Tetrarchies and the Rise of the House of Constantine: The Collapse of Paganism and the Triumph of Christianity, Diocletian to Constantine I, AD 284-337. Spink, London 2011. The newly published fourth volume in this classic series covers the coinage of the period AD 284-337 together with background information on this history of each reign. With current values in £ and US$. Hardcover with jacket, 552pp., b/w illustrations. NEW