Thank you for your replies. I bid on this on a lark and won. The receiver is prominently engraved on both sides with a gentleman’s name. Dean, I will order the research letter. I did a little initial digging myself and found information about the gent in the 1940s and beyond. It appears he and his wife were competitive shooters and raised setters for competition, and he obviously valued the gun quite a bit. I will order the letter and post pics when I have 153964 in hand. The auction site listed her as a VH with 30 in barrels with C and IC chokes, which seems odd. More to follow!