Russian LFAI Metro Irrigatoin (channel flow calculations)

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Country of manufacture: USSR,            Date of manufacture: 1964
Overall length: 35.7 cm,          Width: 6.1 cm,           Weight: 208.8 gms
Materials: Paper or plastic printed scales laminated onto boxwood, 1.5 cms thick, including cursor
Cursor: 4.2 X 6.5 X 0.6 cms; aluminum framed glass lens lines = one on front
Scales: various, specialized
Front: ___________________________________________________________________________
Back: ____________________________________________________________________________
Slide Back: _______________________________________________________________________
Condition: C4-C5 (Minimal to normal signs of use)
Came with: Original black cardboard box/case, labeled with LFAI logo

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