Hemmi Hydraulic Slide Rule , Nachi Co. Ltd, Fujikoshi

Country of manufacture: Japan,            Date of manufacture: Nov. 1974,    Date Code: YK
Overall length: 23.6 cm,          Width: 2.8 cm,           Weight: 57.1 gms
Materials: all plastic, simplex design
Cursor: 2.6 X 3.6 X 0.6 cms; all plastic; lines = single hairline
Scales: 6
Front:
Back: relevant formulae
Slide Back & Well: blank
Gauge Marks: [     ]
Condition: C3-C4 (Very minimal to minimal signs of use)
Came with: Original blue/white plastic box/case