With exception of the stocks that looks just as mine does.
The grip are identical less the medallion and there is no mortise
hole where they might have been.

Years ago, around 1967 or so ..exploring in some woods we found a rusted solid S&W 32/20 loaded and with spent rounds as well.
The grips were just like yours but badly weathered.
We assumed it was a crime piece. Being loaded we could see live rounds rusted solid and perhaps unsafe, it was decided to hand it over to LEO's.
Never heard, if anything came of it...