A.W.Faber-Castell, Stein bei Nuernberg / Germany (1971) *************************************************************** SCALES of the FABER-CASTELL POCKET-DARMSTADT Model 67/54Rb =============================================================== Front Side [ inverse / RED ] Back Side =============================================================== ( 0 ... 14 cm Ruler ) L lgX K X^{3} A X^{2} --------------------------------------------------------------- B X^{2} LL1 exp(0.01X) [CI] [1/X] LL2 exp(0.1X) C X LL3 exp(X) --------------------------------------------------------------- D X [P] [sqrt(1 - (0.1X)^{2})] S sin(0.1X) ; [cos(0.1X)] T tan(0.1X) ; [cot(0.1X)] R E M A R K S : Production Code = 3_71 = March 1971 =============================================================== To use the LL-Scales, the slider has to be turned The slide rule came in a green leather case (w.zipper). Inside is a place for the STYLUS to operate the build-in ADDIATOR on its back side. This ADDIATOR is able to show t r u e negative results in its lower window. On the upper end of the ADDIATOR are mathematical constants and formulas and on its lower end are US/Metric conversions printed. Historical Remarks ... For a more detailed picture click on Model 67/54b ... impressum: *************************************************************** http://public.beuth-hochschule.de/~hamann 02/17/08 |