K&E N4053-5 Mannheim Polyphase

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Country of manufacture: USA,            Date of manufacture: ____
Overall length: 52.1 cm,          Width: 3.7 cm,           Weight: 134.7 gms
Materials: Celluloid laminate over mahogany
Cursor: 2.5 X 3.8 X 0.7 cms; plastic runners, metal framed glass lens; lines = single hairline
Scales: 11
Front: 20 in // A [B, CI, C] D, K || 50 cm
Slide Back:      S, L, T
Gauge Marks: [π, 785, ' (1970), '' (1182) ]
Back: physical constants, conversion factors
Condition: C4-C5 (Minimal to Normal signs of use)
Came with: Original leather case, flap broken

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