Did you get a letter on it? If you PM me the serial number, I'll try to dig up more info for you.
I have a letter. It was sold to the Arthur Cook Supply Corporation in Laurel, Maryland and shipped on May 1, 1961 to the Arthur Cook Supply Corporation c/o Waukegan Shoot-O-Rama in Waukegan, Illinois.
I don't know if the gun actually belonged to Arther Cook but here's some information about him: https://en.wikipedia.org/wiki/Arthur_Cook_(sport_shooter)
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