As for choke, High Standard often used 'stars'( * maybe these?)to indicated choke. I have found them on the left side of the barrel, between the roll stamp info and the receiver. As I understand it, one star is full, two stars are modified, and three stars are improved cylinder. I'm going to guess that with the 28" barrel you will most likely have a modified or full choke. In my experience (certainly not vast) improved cylinder chokes are more common on 26" barrels.
'Tis good you rescued that shotgun! You can't buy a single shot piece of crap made in Brazil for that kind of money. Clean it up, maybe tweak a spring or two, and it will shoot great and serve you faithfully.
And think of how much entertainment value you got yourself for $105!
Last edited by MWN; 07/11/15.
