BRL P3259 Wavin Pipe Friction Computer

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Country of manufacture: England,            Date of manufacture: >= 1969
Overall length: 34.0 cm,          Width: 4.9 cm,           Weight: 113.4 gms.
Materials: All plastic
Cursor: 3.8 X 5.9 X 0.8 cms; all plastic; lines = single line front and back
Scales: 19
Front: Imperial Units: 0-10 in, A. PVC Pipe to B.S. 3505 Class, B. pipe internal diameter inches [ C. gallons per hour, D. cubic feet per second, E. pipe length feet ] F. Feet head, G. pounds per square inch, 0-25 gal
Back: Metric Units: 0-255 mm, H. PVC Pipe to B.S. 3505 class /external diameter mm, I. pipe internal diameter - mm [ J. litres per hour, K. m³ per sec, L. Pipe Metres ] M. metres head, N. kN/M², O. bars, 0-114 litres
Gauge Marks: [      ]
Condition: C2-C3 (Mint but no box to Very Minimal Signs of Use)
Came with: Padded plastic snap case w/gold lettering, "Wavin Pipe Friction Computer, Imperial Metric Converter", Info Card, Wavin business card

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