( ARISTO-Werke )   Dennert & Pape,  Hamburg / Germany      (1944)
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S C A L E S   of   the   A R I S T O       »RIETZ«      Model 99k
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Front Side                                              Back Side
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( 0 ...  28 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

Production Code = 44_2 = Hamburg, 1944, Lot 2

This slide rule came with no case.

                     Historical Remarks ...
impressum:
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© C.HAMANN      http://public.BHT-Berlin.de/hamann       10/06/11