Diamond Arms is another Shapleigh Hardware brand. Yours was probably made by Iver Johnson and would be a decent shooter worth about what you paid for it.
Got any pictures ? When I was a kid I started hunting with a very old 20 Gauge Single Barrel. I miss that gun, but my uncle inherited it, so its still in the family.
Thanks for the picture, it brings back memories, that looks like the old 20 guage I used as a boy. I remember the smell of the gunpowder, and the many a squirrel I brought home with that old gun.
Yes Sir, thats like us old guys had, except mine was a 20 Gauge.
Simple reliable, and yes they kick. Good old Shotguns, Ive been tempted to try and get another one like the one I used as a Boy.