I believe that is a Model 1952 M/S
The yr of mfg (proof date) will be on the bbl and the recv'r as a 2 digit number in line with the Proof marks on both parts. All above the wood line of the stock.
Likely the '54' number in this case.
Normally the rifle would have the standard M/S mfg'r marking on top of the recv'r ring along with the Model number of the rifle & the caliber.
It looks like that area was engraved over on this one
The Mod 1952 was the last M/S model with the straight comb stock .
They did elliminate the stripper clip guides on the recv'r with this Model and also added the swept back bolt handle
It was available in Standard grade as well as Deluxe, Super Deluxe grades. You could also special order a Custom Grade.
Might be a factory Custom Grade and that could account for the Factory markings usually found on the top of the recv'r ring being missing and engraved over instead.
