Sounds like a beautiful Francotte King.

As you know, the only way to truly determine what the chokes in your 2 barrels measure today is to measure them w/ a micrometer, or 'mike' them.

I'm sure you've also seen this before, but just in case:

http://damascus-barrels.com/Belgian_All_Proofmarks.html






Always looking for small bore Francotte SxS shotguns.