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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
Unknown / SOHO second
Unknown
?
Wood
?
50 cm
Basic Calculations
Notes:
An instrument maker hand scribing the scales and tick marks realised a crucial mistake had been made and hence there was no point in completing the layout. The mystery is why this second did not get destroyed.
Image 1
Image 2
