Dennert & Pape / ARISTO-Werke, Hamburg-Altona / Germany  (1942)
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SCALES  of  the   D & P  /  ARISTO   R I E T Z   Model  » 95½ « 
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Front Side                                            Back Side
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A      X2
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B      X2                          S      sin(0.1X); sin(0.01X)
C      X                           T      tan(0.1X)
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D      X

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

S keyed to A/B ;  T keyed to C/D

This historic student's  slide rule is made of plastic. It came
in a green cardboard case  with the funny  model number » 95½ «
The original cursor is shrunk: "Area/Diameter"-Relation between
hairline and the right gap is now too short.

                    Historical Remarks ...
impressum:
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© C.HAMANN     http://public.BHT-Berlin.de/hamann      08/22/09