Micronta 157 (rebranded Relay/Ricoh)
Country of manufacture: Japan, Date of manufacture: 1961
Overall length: 33.5 cm, Width: 4.7 cm, Weight: 144.2 gms.
Materials: Plastic laminate on bamboo; plated metal end braces, adjustable
Cursor: 3.2 X 5.8 X 1.0 cms; all plastic, adjustable; lines = single hairline, front & back
Scales: 23, no extensions
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, 785 ]
Condition: C2-C3 (Mint to Very minimal signs of use)
Came with: Original leather case