D1 Roman Republican Anonymous struck bronzes, McCabe group D1, Related to RRC 50 anchor. Broad squared Janus, tall thick prowstem, prominent keel and rostrum. 40 gram As.
Asses have a broad square Janus head. Reverses have tall thick prowstems which are either line bounded or solid fill. There are often curved keel lines with downward pointing rostrums. The deck structures are small and flat-topped. Flans are thick and dumpy. There are often off-strikes, flat-strikes or flan defects. The flans, fabric and style differ greatly from the main Rome bronze groups A and G, so are not from the main bronze mint at Rome.
The Anonymous Struck Bronze Coinage of the Roman Republic:
a Provisional Arrangement, Andrew McCabe, 2013, text and images copyright Ahala, Andrew McCabe
Group D1 Illustrated coins, and selected other museum or published examples:
As: 45.81g (RR, fig.D1.As.3*), 45.52g (ANS 1944.100.100), 40.13g (ANS 1969.83.139), 38.36g (AM, fig.D1.As.1*), 34.85g (Fitzwilliam, CM.1132-1950), 34.32g (BM.56.2.9, fig.D1.As.2*).
Semis: 18.57g (RR), 17.34g (internet 2011, fig.D1.Sm.3*), 13.38g (BM.56.3.18, fig.D1.Sm.1*), 13.18g (RR, fig.D1.Sm.2*).