Thornton PIC No. P133 Differential Electro

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Country of manufacture: England,            Date of manufacture: ____
Overall length: 30.8 cm,          Width: 4.4 cm,           Overall Thickness (including cursor): 1.1 cm,          Weight: 141.0 gms
Materials: Closed form simplex; all plastic
Cursor: 4.0 X 3.8 X 0.6 cms; metal framed glass lens;  lines = three lines
Scales: 16
Front: 27 cm // E₁, E₂, int + A [ B, R, ISd-ITd, Td-Sd, C ] d + D, F\\ 10 in
Well: Dynamo-Motor Efficiency, Volts
Slide Back: blank
Back: Decimal equivalents, conversion factors, physical properties, fundamental constants,
Gauge Marks: [ π, C (1128), 1745, Q" (2063), L (2303), W (3318), m (3438), C' (3568), R (5528), U (5730), M, (3183), 746 ]
Condition: C5 (Signs of Normal use)
Came with: Original dark green cardboard box/case, seriously taped up, labeled 'P133'

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