Need some help. Have chance to buy a 20 ga sxs by Antonio Zoli Here are the markings, what I would like to know is what the chokes are, and what length the chambers are age would help if possible. both barrels have stamped on the top antonio zoli-gardone v.t.-(brescia)- made in italy, on the rib is ARIETE, the underside of one barrel is special nickel chrome steel nitro proved, there are two stars stamped on this barrel, there is also an G THE underside of the other barrel says canne inter chromate it has three stars stamped there is an S . On the barrel flat for the first barrel is XIX AR( 5digit serial #) then there is a symbol that looks like the point of a double edged knife with a straight line in the middle there a couple of proof marks under the XIX but they are faint look like a crest with crossed rifles?? The other barrel flat has PSF and under that is FINITO there is the Antonio Zoli bow and arrow stamp and then Cal.20 The water table has the same marks as the barrels along with what look like proof marks. It has double triggers.A non automatic safety, Silvered receiver and splinter forearm, pistol grip stock with plastic grip cap and plastic butt cap with bow emblem on it, the engraving appears to be machined. Did a long search but could not find any mention of a 20 ga. ARIETE so no other info either. The STARS are the chokes but how do they translate to MOD, I/C etc. CAN ANYONE HELP??? Thank you