My dad passed a couple of years ago and left behind a Lincoln Jefferies 10 gauge with external hammers. The barrels are steel and about 32" in length. I remember when this gun was brought back from Australia by a missionary friend of the family in about 1964 or so. I shot quite a few ducks and geese with it when I was a kid in the early 70's. My dad said it had 3 1/2" chambers but we only shot 2 7/8" shells. I've been selling off his guns for my mom, but I thought I'd try to learn a little more about this particular one just in case it's something special. It seems to be in less than average condition and the bluing is almost all gone. Anybody out there an expert on this type of double? I have a bunch of pictures if that would help. Thanks in advance for any information.