Palco branded Relay 157

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Country of manufacture: Japan,            Date of manufacture: 1961 (J.K-3)
Overall length: 33.5 cm,          Width: 4.6 cm,           Weight: 144.1 gms.
Materials: plastic laminate on bamboo; plated metal end braces
Cursor: 3.2 X 5.8 X 1.1 cms; all plastic; lines = single hairline, front and back
Scales: 23, no extensions
Front: S_r, S_θ, P', P [Q, CF, CI, C] D, DF, LL2, LL3
Back: Sh2, Sh1, A [B, K, Th, C] D, Tr1, Tr2, db
Gauge Marks: [ π, e, C, C1, M, 785 ]
Condition: C3 (very minimal signs of use)
Came with: Original leather case
Note: Leather case is stamped, "Relay/Ideal Bamboo/SlideRule/Made in Japan/"/rule images/Palco"

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