Craig that is a 1915 gun I do not have the letter in possession yet, as a matter of fact I have yet to order it. Having said that I do know the contents of the letter. It does support the 2 and 7/8 Chambers and I do recall something being in there about the chokes and the weight. There was probably more but it has escaped me now. I'm going to try to get that letter ordered within the next day or so. I did just finish measuring the chokes and they are both full and full
