Slug barrels were not made for auto 5's until 1962. These newer barrels will work, but need to be fitted. You may find a slug barrel for a 16ga on gunbroker.com either Belgian or Japanese, but you will need a qualified gunsmith to fit it to your gun.
1936, you will have to call Browning
If it is in 12 gauge then it was made in the year 1928,if it is in 16 gauge then it was made in the year 1936.
You will have to call Browning.
1936 1936
1936
50-250 usd
1936
50-500 usd
Your Iver Johnson double barrel shotgun can be dated by the words hammer forged.This places production from 1936-1941.these were well made mass produced field grade shotguns of high quality.
the stevans/savage double barrel 503a was made between 1936 and 1954
1936
Was made 1936