Hyperbolic Match Output
Maker:PATRICK Corp/ (USA)
Model:MARK IV data log
Scales Front: || K, odd √ , even √ , A || B, T & T, ST, S & S, C || D, DI, Th, Sh2, Sh1||
Scales Back: ||LL0 +, LL0 -, LL1 +, LL1 -, DF || CF, CIF, L, CI, C || D, LL2 +, LL2 -, LL3 +, LL3 - ||
Gauge Marks: π is on A, B, C, D, CF, DF, CI and DI; π is shown as a ' mark on CIF; R is on C, D, CI and DI. R is shown as a ' mark on CF, DF, and CIF; e is shown as a ' mark on the front C and D, and on CIF; the ST scale shows 1° mark, and " and a second mark '.
Construction: 10 in.; Plastic; Cursor is not framed. Adjustable Metal Brackets.
Source: Rod Lovett Collection