SIDA Ruyi 1002 (same scale arrangement as Flying Fish 1002, but with metal end braces)

Country of manufacture: China,            Date of manufacture: ____
Overall length: 33.2 cm,          Width: 4.8 cm,           Weight: 136.3 gms
Materials: all plastic, metal end braces
Cursor: 3.8 X 6.0 X 1.0 cms; metal runners holding plastic lens, adjustable; lines = two lines on front, one on back
Scales: 28, extensions
Front: sh2, sh3, K, A [B, sin2, H'2, tg2, tg3, C ] D, DI, Lg, th2
Back: Ln1I, Ln2I, Ln3I, DF [CF, CIF, H2, H3, CI, C ] D, Ln3, Ln2, Ln1
Gauge Marks: [1° (1745), π, R (5729), 786, e, e-1 ]
Condition: C3-C4 (Very minimal to minimal signs of use)
Came with: Original light brown cardboard box/case