Alvin 1157 Elite Vector (prob. Relay/Ricoh variant)

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Country of manufacture: Japan,            Date of manufacture: 1961 (J.K-3)
Overall length: 35.7 cm,          Width: 4.6 cm,           Weight: 148.7 gms.
Materials: plastic on bamboo; plated metal end braces
Cursor: 5.8 X 4.7 X 1.0 cms; all plastic; lines = multiline on back; KW & HP
Scales: 23, extensions on C, D, A, B
Front: Sr, Sθ, 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 ]
Condition: C3 (very minimal signs of use)
Came with: Original leather case

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