Flying Fish I-J function

Country of manufacture: China,            Date of manufacture: ____
Overall length: 34.0 cm,          Width: 4.8 cm,           Weight: 101.9 gms
Materials: all plastic, glued-on end braces
Cursor: 3.8 X 6.0 X 1.0 cms; all plastic, adjustable; lines = single hairline, front and back
Scales: 26, extensions on A, B, C, D
Front: ±G, ±I1, Im, 1/3x [ 1/3x, ±J1, Jm, C ] D, LL3, LL2, LL1, L
Back: Th, Ch, K, A [ B, T, ST, S, C ] D, DI, Sh2, Sh1
Gauge Marks: [π, e, e-1, S, V (5236) ]
Condition: C2-C3 (Mint, but extras not mint, to Very Minimal Signs of Use)
Came with: Original blue plastic box/case, manual (Chinese)