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Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Linear
Poyarkov slide rule
Poyarkov
Russia
Celluoid on wood
est. 1950-60's
25 cm
Agriculture Engineering
Notes:
1) Used to calculate irrigation canals 2) Uzbek cotton institute 3) Central Asia Tashkent Cotton cultivation 4) Interesting non-linear scales
Image 1
Image 2
