Archive
of
Collections
Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Pocket Watch Slide Rules
SPC / Mechanical Engineer
Scientific Publishing Company
UK
Metal/glass/paper
1907-1910
Ø 5.1 cm
Basic Calculations
Notes:
The pocket sized version of the ME calculator that is significant in slide rule history because it precedes the later well-known Fowler calculators. It may or may not be Swiss made.
Image 1
Image 2
Image 3
Image 4
Image 5