Here is the info I was looking for. It is taken from shotgun world. As far as worth, unfortunately it's not worth much. You might get $200.00 at best depending on condition and that would be pushing it. If it were a fairly well known Belgian maker, or an old English double, it would have considerably more value.
I have an antique firearm that no one can tell me anything about. It is early 1900's. It is a Cambridge Arms Co. double barrel 12 gauge, side by side hammer gun. There are two numbers on the gun 20419 and G21. There is also an oval on the inside of the barrel with an E on top and LG on the bottom of the oval and on top of the oval is a crown. I have not been able to find out anything, i would appreciate it if any one can give me any information on this shotgun. No one has heard of Cambridge Arms Co., but i know it existed at one time because it has that on the shotgun.
Nope, there never was a Cambridge Arms co. It is a tradename used by a hardware store or other retailer.
Your gun has Belgian proofs "oval on the inside of the barrel with an E on top and LG on the bottom of the oval and on top of the oval is a crown".
Unfortunately, the history on it as far as maker , retailer, and quality are sketchy at best.
The problem is that no one knows who made the old gun. Importers like Folsom imported Belgian doubles by the barrel load and stamped any name on them the buyer wished. They were made by any of the hundreds of Belgian exporters and varied in quality from absolute junk to servicable but crudley finished clunkers made to sell for less than $10.00- AFTER paying a 100% import tax. I wish I, or anyone, had a complete list of who made what, when they made it or for whom it was made; unfortunatley, no such list exists.
