FREDERICK POST CO., Chicago, Illinois / USA (1970) *************************************************************** made by HEMMI / Japan S C A L E S of the P O S T » UNIVERSAL « Model 1452(WL) =============================================================== Front Side [ inverse / RED ] Back Side =============================================================== ( 0 ... 10" Ruler ) --------------------------------------------------------------- A X2 --------------------------------------------------------------- B X2 S sin(0.1X); sin(0.01X) [CI] [1/X] L lgX C X T tan(0.1X) --------------------------------------------------------------- D X K X3 --------------------------------------------------------------- ( 0 ... 27 cm Ruler ) R E M A R K S : ( 1° = 60' ; 1' = 60" ) =============================================================== The TRIGONOMETRIC SCALES are in MINUTES(') & SECONDS(") S keyed to A/B ; T keyed to C/D The bamboo sides are held together with a metal sheet. On the back side are tables with CONSTANTS & US/Metric CONVERSIONS - given as fractions. The SR came in a brown leather case with the INSCRIPTION » POST 1452 WL « ( W = Wood; L = Leather ) and an INSTRUCTION BOOKLET. HEMMI introduced a year code, starts with 1950 = "A" ... and the month code starts with Jan. = "A" ... This SR has the code "UF", means it is made in June 1970. Historical Remarks to POST ... Historical Remarks to HEMMI ... impressum: *************************************************************** © C.HAMANN http://public.BHT-Berlin.de/hamann 11/11/11 |