I had a similar French guild sxs 16 bore for a few years. I bought it at a small gunshop in Maine for $375. It was a 68 cm barrel 65 mm chamber ic and F gun that had probably been used for grouse. The gun overall was in good condition inside and out with only some deterioration of the nickel plate on the action bar. Weighed 5 pounds 11 ounces. First thing that happen was it began doubling with B&P one ounce loads (2-1/2"). I adjusted the sear and went on for several years, using it to hunt grouse and during dog training. Then it started to fail. It developed a light primer strike on one side. I sent it to a gunsmith and he found a broken main spring/replaced. Next thing that happened was it actually fired when the action closed! Back to the gunsmith. He said the metal used for the sears was very soft and he actually welded new metal tips and reshaped the sears. Back to good operation for a year and then I sold it...I believe this gun was quite old, had a serial number 408...Possibly pre WWI.
