Crispus AE21 / R5! Attribution: RIC vol VII Thess 21 Date: 317-318 AD Obverse: CRISPUS NOBILLIS CAES, Bust r. Reverse: PRINCIPIA IVVENTVTIS, Crispus r. Size: 21.06 mm Weight: 3.3 grams Rarity: [Image] 10 Description: A wonderful bronze with deep green patina and the highest rarity listed in RIC © 2003 Ancient Imports By permission of Marc Breitsprecher, from www.ancientimports.com.