Object StatementSlide rule with case and instruction sheets, Faber-Castell 2/82 N Biplex, open frame, duplex, plastic / metal / paper, made by Faber-Castell, Gemany, c. 1962
Physical DescriptionSlide rule, Faber-Castell 2/82 N Biplex, duplex, open frame with die cast metal straps at each end, double-sided plastic cursor. Scales are printed on white plastic in black, red and green.
In plastic case with instruction sheets and a separate ruler.
Stock, upper: T1, T2, L, A
Slide: B, BI, CI, S', C
Stock, lower: D, S, ST, P
Stock, upper: LL03, LL02, LL01, K, DF
Slide: CF, K', CIF, CI, C
Stock, lower: D, LL1, LL2, LL3
MarksManufacturer information printed on slide rule body in black, in upper left ' Faber-Castell (logo) ', in centre left ' 2/82 N / Made in Germany ', and in lower left ' Castell / Biplex '. Name on white paper sticker, in center right, handwritten in black ' Bromley / 1984-9 '.
Logo and copyright information on separate ruler, in left hand end, printed in black ' Faber-Castell (logo) / Copyright by / A. W. Faber-Castell '.
Logo on case, in left, printed in green ' Faber-Castell '. Model number on white paper sticker on case, in left hand end, printed in black ' Castell 2/28N '.