Archive
of
Collections
Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Disk
Double-Log Decadic Long-Scale Calculator with Vernier
Designed and made by Dr. Oliver Steffens
Germany
Card Stock
c. 2020
Dia. = 19.7 cm
Engineering calculatons
Notes:
General engineering and science calculations with the addition of a vernier cursor
Image 1
