Hi Acera!
According to GUN TRADERS GUIDE, 8th Edition (1978) by Paul Wahl, the Model 110D was similar to the others except has internal magazine with hinged floorplate. Checkered Monte Carlo - style walnut stock.
Made from 1972 to 1975.
"bannockburn" is right on with the 110PE with the receiver, floorplate & trigger guard engraved. The stock of French walnut.
Good luck with your endeavor.
Digger.