I've got this old Browning Auto Shotgun from an older gentleman that was looking to get rid of a few things and wanted to get some more info on it. Says it was his main hunting shotgun for a number of years so the blueing has seen better days. Have a couple of questions about it:
1) Whats the little lever for on the left side of the receiver?
2) What kinda value would you put on an old shotgun like this?
1) Whats the little lever for on the left side of the receiver?
2) What kinda value would you put on an old shotgun like this?

