Hyperbolic Match Output
Maker:PRECISION SCALE (USA)
Model: 1751 Log Log 10 Hyperbolic
Scales Front: || K, L, DIF, DF || CF, CIF, Two sqrt scales √ (odd & even), CI, C || D, DI, TH, SH1, SH2 ||
Scales Back: || LL1, LL2, LL3, LL4, A || B, S&S, ST&ST, T&T, CI, C || D, LL/1, LL/2, LL/3, LL/4 ||
Gauge Marks: π, π/4, and R are on C, D, CF, DF, CI, DI, and CIF; π & π/4 are on A and B; and marks 1°, ' and " are on ST. Cursor is missing. Note: This rule was designed and manufactured but never sold.
Construction: 25 cm.; White film or Yellow film version over metal, Cursor is missing, Non-adjustable metal brackets.
Information: Note: This rule was desiged and manufactured but never sold.