I have an 11 with a SN 94xxx that when the cork buffer pad finally disintegrated a few years ago requiring me to replace it, somehow/where I found credible evidence that it was from around 1930. This gun was my deer gun in the 1960s and 70s, duck, dove and quail ever since. It is serving duty as home defense right now. It was given to me for Christmas by Santa when I was 10 years old in '59. It was in used condition with a bulge in the barrel where Santa must have accidentally left it barrel up in his sleigh through a snow storm during the trip down and then test fired it before leaving it. It still has the bulge and it still shoots fine and I'm still too cheap or maybe just too sentimental to get a new barrel. When I replaced the buffer was when I obtained my first owners manual that informed me that I was supposed to be setting the brass recoil rings depending on the power of the shell I was shooting. There had been literally thousands of shells, high and low brass, fired with the lightest recoil setting. At least one box of slugs and many boxes of various size buckshot. And this was when ALL shotgun shells came in 25 per box. This is one bang up, well made, bull of a shotgun. And I'm sorry to tell you that I will never sell this gun. However, I have seen a few in my local high priced gun shop as well as a few in some of the gun shows in my area, Charleston, SC.