Although most of the guns sold as Charles Daly from that same era were made by Miroku in Japan, some were made by Beretta. There was a Beretta-made sxs with a vent rib called an Empire Grade. I remember running across one of those at a gun show. The dealer was convinced it was one of the Miroku-made guns, but in fact (as the proofmarks established) was Italian. Same time period when Beretta was making their GR sxs.