Faber-Castell 3/11



Front without slide

Back of the slide

Bottom of the slide rule


Length 38.5 14cm
Number of scales 6
Country of origin USA
Country of manufacturing Germany
Year of manufacturing 1944
Status of the slide rule Near mint
Material of the slide rule Celluloid on wood
Type of cursor Clear plastic
Status of the box Near mint
Status of the manual None
Collection number 174
Further comments The 3/11 is a very rare slide rule, designed for designing steel structures. I have not been able to find a manual, so its operation is still a mysterie for me.



 Last updated: 04-09-2009