http://www.the-saleroom.com/en-gb/au...2-a50800e3526c
These are considered one of the ultimate American collectable airguns. I've known people who have purchased entire collections just to get a Brown. Unfortunately, this one is not in that great of shape; however, this is the only one that I can recall coming with the original holster. The box unfortunately is not original and adds very little to the value.
Built by the inventor in Davenport, Iowa, in 1939-1940. Production ceased do to war material restrictions and never resumed after the war.