STERLING PLASTIC CO., Mountainside, New Jersey / USA         (1965)
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SCALES  of  the   S T E R L I N G   »PRECISION«       ( Model 584 )
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Front Side                                                Back Side
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A          X2
-------------------------------------------------------------------
B          X2                         S       sin(0.01X); sin(0.1X)
CI         1/X                        L       lgX
C          X                          T       tan(0.1X)
-------------------------------------------------------------------
D          X
K          X3

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 ;  T keyed to D

To use the Back-Scales, the Slider has to be turned.

MODEL 584  came in an acrylic container with an instruction sheet.
---------  There is no model number on the slide rule, but
           the sheet refer to  » Model 584 «

MODEL 589  came in an soft plastic case with the same instruction
---------  sheet. A sticker on the container reads  » Model 589 «

SCALES ARE THE SAME - BUT BOTH SLIDER SIDES  P R I N T E D   R E D.

                      Historical Remarks ...
impressum:
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© C.HAMANN       http://public.BHT-Berlin.de/hamann        10/19/14