CONCISE, Tokyo / Japan     ( bought new from CONCISE in 2008/9 )
****************************************************************

S C A L E S  of the  CIRCULAR SLIDE RULE  » CONCISE  Model 300 «
================================================================
Front Side            [ inverse / RED ]                Back Side
================================================================

K      X3                         LL3   exp(X)
A      X2                         LL2   exp(0.1X)
D      X         outer circles    D     X
----------------------------------------------------------------
C      X         inner circles    C     X
[CI]   [1/X]                      S     sin(0.1X); [cos(0.1X)]
B      X                          T1    tan(0.1X); [cot(0.1X)]
L      lgX                        T2    tan(X); [cot(X)]
                                  ST    sin(0.01X); [tan(0.01X)]

R E M A R K S :                       (  1° = 60' ;   1' = 60" )
================================================================
The TRIGONOMETRIC SCALES  are divided in MINUTES(') & SECONDS(")

This circular is very similiar to the  » FULLERTON Model 1458 «

                      Historical Remarks ...
impressum:
****************************************************************
© C.HAMANN      http://public.BHT-Berlin.de/hamann      02/04/09