From your pics, it is obvious that both stock panels are broken. There are reproduction stocks exactly like the ones on your gun that look very nice and are very reasonable in cost. Replacing the grips would make the gun look nicer. Also, with the gun pointing away from you, the stock panel on your right should have a serial number either scratched or stamped on the inside of the panel, hopefully matching the serial number of the gun. If you decide to replace the stock panels, keep the originals, even though they are broken. You have a nice heirloom from your father. Enjoy it.

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SWCA 3297 SWHF 583