Gordian III Viminicium LION & BULL, Moesia $21.07 Aug-30-04 Seller amphoracoins Gordian III, 238-244 AD, bronze of 22.2 mm, 5.69 grams. Struck at the mint of Viminacium in Moesia Inferior. Obverse: Bust of Gordian III. Reverse: Moesia stands between bull and lion.