Alvin 1150 Elite DesiLog (rebranded Relay/Ricoh 150)

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Country of manufacture: Japan,            Date of manufacture: 1969 (R.S-6)
Overall length: 32.7 cm,          Height: 3.9 cm,           Weight: 127.7 gms.
Materials: Plastic over bamboo; plated metal end braces.
Cursor: 5.1 X 4.7 X 2.2 cms; all plastic, front side magnifier; lines = back multi-line: KW, HP
Scales: 21
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 ]
Condition: C5 (normal use), weak spring on cursor
Came with: Original leather case, manual
Note: Because of the size of the magnifier on the cursor front (see edge view), the front side of the slide rule was scanned with cursor removed.

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