ACU-RULE MFG. CO., Mt.Olive. Illinois / USA        (1960)
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SCALES  of  the   » ACU-MATH MANNHEIM TYPE «    Model 400
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                                      ( one-sided only )

   S       sin(0.01X); sin(0.1X)        S keyed to A/B
   K       X3
   A       X2
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   B       X2
   CI      1/X
   C       X
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   D       X
   L       lgX
   T       tan(0.1X)                    T keyed to C/D

R E M A R K S :
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The TRIGONOMETRIC SCALES are divided in MINUTES & SECONDS
    1 Grad   = 60 Minutes (')
    1 Minute = 60 Seconds (")         +-----------------+
                                      |  NAVY EXCHANGE  |
The contents of the BLUE LABEL reads: | N.A.S.PENSACOLA |
                                      |       A1        |
The slide rule came in a box          |     125-273     |
together with a booklet               |    $ 1.50 Ea    |
and a plastic case                    +-----------------+

              Historical Remarks ...
impressum:
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© C.HAMANN   http://public.BHT-Berlin.de/haman   03/01/07