Faber-Castell 391



Front without slide

Back of the slide


Length 29 cm
Number of scales 9
Country of origin Germany
Country of manufacturing Germany
Year of manufacturing 1933
Status of the slide rule Near mint
Material of the slide rule Celluloid on wood
Type of cursor Aluminium wiht glass
Status of the box Normal signs of use
Type of box Black cardboard
Status of the manual  
Collection number 219
Further comments Not shown of the photos is a cm scale on the top of the slide rule and a 1:25 scale on the bottom.


 Last updated: 04-09-2009