GEBR. WICHMANN, Berlin / Germany (1930) **************************************************************** made by Albert Nestler, Lahr in Baden / Germany as Model 23R/3 SCALES of the W I C H M A N N » RIETZ « Model 1418 R III ================================================================ Front Side [ inverse / RED ] Back Side ================================================================ ( 0 ... 27 cm Ruler ) K X3 A X2 ---------------------------------------------------------------- B X2 S sin(0.1X) [CI] [1/X] ST arc(0.01X) C X T tan(0.1X) ---------------------------------------------------------------- D X L lgX ( 1:25 Ruler ) R E M A R K S : ( 1° = 60' ; 1' = 60" ) ================================================================ The TRIGONOMETRIC SCALES are divided in MINUTES(') & SECONDS(") The body, under the slider says »A.N.A.G.« , an indicator for made by »A.NESTLER AG«. Same SR as NESTLER Model »23/R3« Historical Remarks ... impressum: **************************************************************** © C.HAMANN http://public.BHT-Berlin.de/hamann 08/10/09 |