AS, MD and BULL, Sear# 672 (RCV 2000 ed.) 165-155 B.C.?, (attribution was verified on wildwinds.com). Coin is about 1 1/4" diameter, Heavy, beyond my scale limit but listed at approximately 44 grams. Obverse" Janus facing forward and backward. Reverse: MD above galley is visible, the bull is barely decernable to the left of MD.