I bought an 1891 Parker DH damascus 12 gauge at the Fall Southern SxS last weekend. I'm pretty sure, but not certain, that the barrels have been cut to 28". The stock was cut and a Silvers pad added. The bores have been reamed to .754 and there's .006 choke remaining in each barrel (there's plenty of barrel wall thickness). I haven't patterned it but I did shoot it at clays down there and when I was on target they broke.

If this gun was in "original condition" it would have been priced well above my budget so I got a "shooter" that I could afford.

I agree that you should shoot it and see how it performs. Personally I like open chokes.