Faber-Castell 339 Schul-Rechenstab



Front without slide

Back of the slide


Length 30 cm
Number of scales 6
Country of origin Germany
Country of manufacturing Germany
Year of manufacturing  
Status of the slide rule Normal signs of use
Material of the slide rule Celluloid on wood
Type of cursor Celuloid
Status of the box Normal signs of use
Type of box Black carton
Status of the manual None
Collection number 58
Further comments This is one of the series of inexpensive school slide rules (Schul-Rechenstab) that Faber-Castall made. They do not have  the manufacturing date imprinted on the back. I am not able to date this rule yet.  Looking at the box I would estimate the 1910-1935 period. To be confirmed!

The celluloid of this slide rule looks very cheap: more like a thick layer of white paint.


 Last updated: 04-09-2009