Do the old Parker 16ga. Trojan sxs shotguns built in 1935 shoot 2 3/4 shells or the 2 1/2 shells?
What is a good brand of shells for the old bird guns?

are those Parkers rimfire levers?

1935 should be 2.75.

Captain Obvious has arrived.

Those double barrel, lever action 16 gauge rimfires are very rare.