Sonderrechenstab SR 701 M (0610)
Index: 0610
Year: around 1970s ?
Maker: IWA-Rechenschleberfabrik, Esslingen, Germany
Dimensions: 23 x 5 x 1 cm (paper etui)
Info
Plastic slide rule for calculating machine times. This M version is a later version of the original SR 701 from around the 1930s.
References/Links/More Info
David's calculating sticks (SR 701)
