Hyperbolic Match Output
Maker:Gong Si He Ying (China)
Scales Front: || LL02, LL03, DF || CF, CIF, CI, C || D, LL3, LL2|| CF is folded at π
Scales Back: || Sh1, Sh2, Th, A || B, T&T, SRT, S&S || D, DI, LL01, LL1 ||
Gauge Marks: π is on A, B, CF, and DF; π/4 is on A and B scales; The mark 1 ° is on scale SRT.
Construction: 25cm.; Plastic face on wood ; Cursor is not framed. Adjustable metal brackets.
Information: No Number (Called Rose Wood Slide Rule). Similar to K&E 4083-3 (1955) See 59