Hyperbolic Match Output
Maker:PRECISION SCALE (USA)
Model: 1752 Log Log e Hyperbolic
Scales Front: || Sh1, Sh2, Th, A || B, T&T, ST, S&S, CI, C || D, DI, K, L ||
Scales Back: ||LL/0, LL/1, LL/2, LL/3, DF || CF, CIF, Two sqrt scales √ (odd & even), CI, C || D, LL3, LL2, LL1, LL0||
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.