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MEISSNER - RIETZ   ( 25 cm Scales )



MEISSNER KG, Dresden / (GDR) Germany                  (1955)
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                                                 VERSION (A)

S C A L E S  of  the  M E I S S N E R  » R I E T Z «  DUPLEX
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Front Side            [ inverse / RED ]            Back Side
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K       X3                             ( o ... 27 cm Ruler )
A       X2
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B       X2                      S     sin(0.1X); [cos(0.1X)]
[CI]    [1/X]                   ST    arc(0.01X)
C       X                       T     tan(0.1X); [cot(0.1X)]
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D       X
L       lgX                                 ( 1:50 m Ruler )

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

The cursor is double-sided - the Trigonometric-Functions can
be used without turning the slider in the body - therefore
» DUPLEX «  - The cursor's end-plates are made of aluminum.
The slide rule came in a brown cardboard case.

A  VERSION (B)  is in the Collection  ( NOT SHOWN )
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There is  N O  cm-  & inch-RULERS  on its back side

                   Historical Remarks ...
impressum:
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http://public.beuth-hochschule.de/~hamann           05/16/10