IWA 0257 Slide Rule for Radio Technicians

Country of manufacture: Germany,            Date of manufacture: ____
Overall length: 15.5 cm,          Width: 4.0 cm,           Weight: 24.2 gms
Materials: all plastic, closed body form
Cursor: 3.0 X 4.5 X 0.4 cms; all plastic;     lines = five lines, front side only
Scales: 16
Front: cms, A [ B, Capacitance, Inductance, C ] D, frequency, wavelength, inch
Slide Back: sin, lg, tg
Back: I2/I1, db, P2/P1, Resistor color code table, common trig and log values
Gauge Marks: [      ]
Condition: C5 (Normal signs of use)
Came with: original black plastic slipcase, instruction manual (Dutch)