illini24,

If the original owner purchased the gun in downtown Chicago, it is highly likely that he purchased it from Von Lengerke and Antoine, which was owned by Abercrombie and Fitch. It was a fascinating high-end sporting goods store. I visited the store several times in 1954 and 1955 when my father was getting outfitted for an African safari. David Carroll has a Registered Magnum for sale that letters to VLA.

Best regards,

Jeff