CELTIC, Lower Danube Region. 1st century BC. Silver Serrate Denarius. Imitating Roman Republican Types $260.00 May 18, 2008 Seller ancientcaesar CELTIC, Lower Danube Region. 1st century BC. Silver Serrate Denarius (19 mm. 4.62 gm). Imitating Roman Republican types. Helmeted head of Roma right / The Dioscuri riding right. Extremely Fine. Very Rare. 20460