Yesterday I had a guy at work give me a Winchester model 37 single shot shotgun in 16 gauge. It's a little rough on the outside, dinged up and barrel has some rust pitting. The inside of the barrel is absolutely perfect! I see no serial number on this gun. The guy told me it was his dad's and he thought it was purchased in 1939. Anyone know anything about this shotgun? Any idea how to tell exactly how old it it? Everything appears to be in good working order, although I have not shot it yet. I'll probably give it a test fire this weekend and as long as everything is good then I will strip it down for a real good cleaning. Any info you might have on this gun would really be appreciated!