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REISS - DARMSTADT - RECORD
( 25 cm Scales )



REISS, Bad Liebenwerda / (GDR) Germany                   (1968)
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SCALES of the REISS (DECELITH)  »DARMSTADT-RECORD«   Model 3214
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Front Side           [ inverse / RED ]                Back Side
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                                          ( 0 .. 25 cm  Ruler )
[P]      [sqrt(1 - (0.1X)2)]
S        sin(0.1X)                         L         lgX
ST       arc(0.01X)                        K         X3
DF       πX                                A         X2
---------------------------------------------------------------
CF       πX                                B         X2
[CIF]    [1/πX]
[CI]     [1/X]                             [CI]      [1/X]
C        X                                 C         X
---------------------------------------------------------------
D        X                                 D         X
T1       tan(0.1X)                         LL1       exp(0.01X)
T2       tan(X)                            LL2       exp(0.1X)
[DI]     [1/X]                             LL3       exp(X)

R E M A R K S : 
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The slide rule came in a (taped) red plastic case.

The same model was later under the logo  » MANTISSA-RECORD «
on the market ...

                 Historical Remarks ...
impressum:
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© C.HAMANN  http://public.beuth-hochschule.de/~hamann  09/11/07