CWL Centralne Warsztaty Lotnicze, Poland

Centralne Zakłady Lotnicze (CZL) began its activities at the end of November 1918. Apart of aircaft production the workshops were making and repairing propellers. In March 1921 the name has been changed to Warsztaty Centralnych Zakładów Lotniczych (WCZL).
The following propeller numbers were manufactured between 1919 and 1925:
1919 – 172 pieces
1920 – 374 pieces
1921 – 370 pieces
1922 – 464 pieces
1923 – 249 pieces
1924 – 251 pieces
1925 – 100 pieces.
Totally 1980 propellers were made. Characteristic red-white checkerboard decal was placed on propeller blades. Propeller production was ceased in 1925.
The workshops were also repairing damaged propellers:
1919 – 189 pieces
1920 – 270 pieces
1921 – 129 pieces
1922 – 69 pieces
1923 – 29 pieces.
Warsztaty Centralnych Zakładów Lotniczych ceased all activities in 1927.