Not positive on this but I think if original you will find initials and/or the serial number pressed into the wood under the trigger guard...would have been removed if it was converted from full or half pistol grip. My 1909 and 1915 have the stampings...cannot recall if the 1924 does.

My 1915 is a straight gripped #2 Krupp...yours looks pretty close to same shape and checkering but the cheeks of the stock on yours seem to have very sharp transitions and perhaps a bit odd shape?

Best,
Mark



Ms. Raven