Archive
of
Collections
Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Long and Long Scale Slide Rules
K&E / 4088-5 Polyphase
Keuffel & Esser
USA
Wood/celluloid veneers
1916-1922
50 cm
General Calculations
Notes:
Duplex model.
Image 1
Image 2
Image 3
Image 4
Image 5
Image 6
Image 7
Image 8
