Stocks with no medallions were used up until c.1910 and the wood was concave in the area where medallions were later installed.
Sunken gold plated brass from 1910 to c.1920.
Non-medallion with convex area where medallions were from 1920 to 1930.
Flat silvers from c.1930 until the war.

__________________
Jim
S&WCA #819