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Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Disk
Selectron Swiss Slide Rule Timer
Ollech & Wajs
Switzerland
Metal
est. 1960-1970's
dia. = 5.8 cm
Timer
Notes:
"1) C and D scales, plus conversion guage marks for timing calculations 2) This unit has a Swiss mechanical watch movement - non-electronic"
Image 1
Image 2
Image 3
