Albert Nestler, Lahr in Baden / Germany               (1963)
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S C A L E S  of the   N E S T L E R   » RIETZ «   Model 0239
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Front Side                                         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 is an economic plastic SR. It came with a damaged/glued
soft-plastic case.  On the back side of the slide rule is a
table with physical constants.

                   Historical Remarks ...
impressum:
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© C.HAMANN    http://public.BHT-Berlin.de/hamann    09/26/10