Front without slide

Back of the slide

Length 25 cm
Number of scales 9
Country of origin USA
Country of manufacturing Germany
Year of manufacturing Period 1895-1907
Status of the slide rule Normal signs of use
Material of the slide rule Celluloid on wood
Type of cursor Metal with glass
Status of the box None
Status of the manual None
Collection number 157
Further comments This slide rule is nearly identical to my oldest 360. The only difference is that this slide rule is "Made in Germany", while the 360 is "Made in Bavaria".

I have some indications that the "Made in Germany" was used only before 1900. I stil have to verify this.



 Last updated: 04-09-2009