Archive of Collections



Details and Image



TypeModel No.MakerCountryConstruction
Material		DateScale LengthArea of Use
Disk
Gudermann Engineering Vector Slide Rule
Designed and made by Dr. Oliver SteffensGermany
Card Stock
c. 2021Dia. = 19.8 cmEngineering calculatons

Notes: 1) This slide rule was named after Christoph Gudermann (1798-1852) 2)Used in engineering calculations using complex numbers


Image 1