ROMAN Silver Coin w/ CASTOR & POLLUX - 149 BC $76.00 Mar-17-00 Seller: axismundi.com Obverse: Helmeted head of Roma facing right... with X behind. Reverse: Castor and Pollux galloping right... C. IVNI. C. F. below horsesROMA in exergue Size: 18 mm ( 3/4" ) Weight: 3.49 grams Reference :SEAR # 190