Faber-Castell 55/91



Front without slide

Back of the slide


Length 30 cm
Number of scales 7
Country of origin Germany
Country of manufacturing Germany
Year of manufacturing  
Status of the slide rule Near mint
Material of the slide rule Wood
Type of cursor Celluloid
Status of the box Near mint
Status of the manual None
Collection number 51
Further comments One of the range of school slide rules that Faber-Castell produced in the first half of the 20th century. This one is interesting because it doesn't have a layer of celluloid.


 Last updated: 04-09-2009