I bought a Winchester Model 37 .410 today from a friend that had no use from his fathers old gun. It's in fairly decent shape for being 50-60 years old, though I can't take it apart completely, corrosion maybe? I removed the forearm but couldn't get the barrel off. I cleaned the gun the best I could and it fires great. Will be a good little hunter for my boys. It says on the barrel 3" chamber, does that mean only 3" shells? It also says 'choke' but not what choke. There are no removable tubes. Any idea on value, my friend wanted $75, not too bad $$ wise since that doesn't even fill my truck these days.