Slide Rule Faber Castell Electro (0831)
Index: 0831
Year: Ca 1950
Maker: Faber Castell, Nurnberg, Germany
Dimensions: 31 x 5 x 2 cm
Info
Slide rule specifically for calculations concerning motors and dynamos and cable losses.
The model is 1/98 which would indicate to be made in 49 or 53 (from page Beuth Hochschule).
On the back, the number "41" is stamped into the wood.
