Albert Nestler, Lahr in Baden / Germany                  (1957)
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S C A L E S   of  the   N E S T L E R   » RIETZ «    Model 0238
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Front Side            [ inverse / RED ]               Back Side
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( 0 ...  27 cm Ruler )

K        X3
A        X2
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B        X2                                S         sin(0.1X)
[CI]     [1/X]                             ST        arc(0.01X)
C        X                                 T         tan(0.1X)
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D        X
L        lgX

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

This plastic model  came in a  blue plastic case.  On the  back
side of the SR is a table with physical constants. The RELATION
between the  lower-left and the  upper-middle  HAIRLINES on the
CURSOR is for  CONVERSION   1 [kW]  = 1.3596 [PS]

                    Historical Remarks ...
impressum:
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© C.HAMANN     http://public.BHT-Berlin.de/hamann      09/25/11