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Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Long and Long Scale Slide Rules
Carbic / Otis King Model K (1)
Carbic Ltd.
UK
Metal/paper+ celluloid film
1920-1924
168 cm
Basic Calculations
Notes:
Early serial no. 9201 (no letter prefix) long-scale rare white on black model with 414 and 423 scales & luxury coffin box.
Image 1
Image 2
Image 3
Image 4
Image 5
Image 6
Image 7
