Toggle Markings and Finish
By Manufacturer and Year
Year of Manufacture Finish Chamber Manufacturer
1909 RB/S Blank DWM
1910 RB/S 1910 DWM
1911 RB/S 1911 DWM
1912 RB/S 1912 DWM
1913 RB/S 1913 DWM
1914 RB/S 1914 DWM
1915 RB/S 1915 DWM
1916 RB/S 1916 DWM
1917 RB/S 1917 DWM
1918 RB/S 1918 DWM
1911 RB/S 1911 Erfurt
1912 RB/S 1912 Erfurt
1913 RB/S 1913 Erfurt
1914 RB/S 1914 Erfurt
1915 RB/S 1915 Erfurt
1916 RB/S 1916 Erfurt
1917 RB/S 1917 Erfurt
1918 RB/S 1918 Erfurt
1934 RB/S   K Mauser
1935 RB/S   G  Mauser
1936 RB/S 1936 Mauser
1937 RB/S 1937 Mauser
1937 SB/SB 1937 Mauser
1938 SB/SB 1938 Mauser
1939 SB/SB 1939 Mauser
1939 SB/SB 1939 Mauser
1940 SB/SB 1940 Mauser
1941 SB/SB 41 Mauser
1941 SB/SB 41 Mauser
1942 SB/SB 42 Mauser
Key:

*RB/S=Rust Blue/Strawed small Parts.
*SB/SB=Salt Blue Finish/Salt Blue Small Parts.

*Collectors call some 41&42 dated Lugers with byf toggle codes "Black Widows". These have black plastic grips.