So.....I just purchased a rifle that has an exact 91/28 configuration with adjustable sights...the strange thing is that is has 39 xvii with fna Brescia marked on the barrel. Serial number is in the b600 range. From what I can tell it has not been bubba'd with or sporterized as the barrel length is correct as well. It is chambered in 6.5 too...whether it was 7.35 originally, I am not sure. I know Brescia was the only manufacturer who put those type of adjustable sights on the 91/38 Calvary carbines...is it possible they had some left of these sights left over in 39 and simply used it on this ts rifle?? Please help!