Lead figure of the emperor Trajan Decius. Gaius Messius Quintus Traianus Decius (b. around 201 - d. June 251), Roman Emperor between (249 - 251). In the last year of his reign, he was joint emperor with his son Herennius Etruscus until the Battle of Abrittus, in which they were both killed. 9,37 g. 30,7 mm.