Hello Sanlapper, I’m a bit late to the party but wanted to say I just picked up a superb early Mod 17 in 16 bore, pretty much the exact same configuration as yours (obviously sans the engraving or chopper lump barrels).
It has 29 1/2 “ barrels of their best steel and the action is scalloped just like yours….I also have a Mod 29 Meisterarbeit in 12 bore.
These are some of my favourites….all phenomenal pieces, pm me if you need any additional info, also Jim Cates “ Sauer” book is a great source of information.
All best
CJ
