FULLERTON                                                 (1960)
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made by CONCISE, Tokyo / Japan 

S C A L E S  of the CIRCULAR SLIDE RULE  » ACUDIAL «  Model 1458
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Front Side            [ inverse / RED ]                Back Side
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K       X3                                     LL3    exp(X)
A       X2                                     LL2    exp(0.1X)
D       X               outer circles          D      X
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C       X               inner circles          C      X
[CI]    [1/X]                                  S      sin(0.1X)
B       X                                      T1     tan(0.1X)
L       lgX                                    T2     tan(X)
                                               ST     arc(0.01X)

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

On the cursor's back side is printed: K.K.KONSAISU, TOKYO, JAPAN
(= An other transcription for "CONCISE" ) - This circular slide
rule is very similiar to the  » CONCISE Model 300 «

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