Olson TL-373

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Country of manufacture: Japan (Ricoh/Relay 150),            Date of manufacture: 1962 (d.c. = K.K-4)
Overall length: 32.5 cm,          Width: 4.0 cm,           Weight: 114.3 gms
Materials: Celluloid laminate over bamboo, metal end braces, adjustable
Cursor: 3.0 X 5.1 X 1.0 cms; all plastic, adjustable; lines = single line, front and back
Scales: 21, no extensions
Front: L, LL1, DF [ CF, CIF, CI, C ] D, LL3, LL2
Back: LL0, LL00, A [ B, K, CI, C ] D, S, ST, T
Gauge Marks: [ π, e, C, C1, M, 785 ]
Condition: C4 (minimal signs of use), but dirtier than one would like
Came with: Original brown leather case, labeled "Olson"

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