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ACU-RULE   MEDIUM  ( 8" / 20 cm Scales )  SIZE



ACU-RULE FESTUS MFG. CO., Festus, Montana / USA              (1940)
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S C A L E S  of the  » ACU-RULE «  M E D I U M  S I Z E  SLIDE RULE
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                                                 ( one-sided only )
   A       X2
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   B       X2
   CI      1/X
   C       X
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   D       X
   K       X3

R E M A R K S :
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The SR is made out of solid wood. The surfaces are painted white w.
black printed scales on front &  conversion tables and mathematical
constants on its back side.  The cursor has  a magnifyer.  No case.

                     Historical Remarks ...
impressum:
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©  C.HAMANN   http://public.beuth-hochschule.de/~hamann    05/05/11