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FABER-CASTELL   POCKET-DARMSTADT
Models  67/54  &  67/54b
( 12.5 cm Scales )



A.W.Faber-Castell, Stein bei Nuernberg / Germany           (1961)
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VERSION (A)                   Production Code = 9 61 = Sept. 1961

S C A L E S  of the  FABER-CASTELL POCKET-DARMSTADT  Model 67/54b
=================================================================
Front Side           [ inverse / RED ]                  Back Side
=================================================================
( 0 ...  14 cm Ruler )

L        lgX
K        X3
A        X2
-----------------------------------------------------------------
B        X2                                    LL1     exp(0.01X)
[CI]     [1/X]                                 LL2     exp(0.1X)
C        X                                     LL3     exp(X)
-----------------------------------------------------------------
D        X
[P]      [sqrt(1 - (0.1X)2)]
S        sin(0.1X) ; [cos(0.1X)]
T        tan(0.1X) ; [cot(0.1X)]
                                          ( 0 ... 5 1/2 " Ruler )

This  POCKET-SR  ( Model 67/54b )  came in a  brown leather case.

There is a newer version in the Collection:
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VERSION (B)                    Production Code = 1174 = Nov. 1974

This  POCKET-SR ( Model 67/54b ) has the same scales but NO INCH-
Ruler.  On its back side, and also on its black leather case, the
imprint  »STRABAG«  is indicating  that this SR was a gift of the
well known CONSTRUCTION COMPANY.

There is an OLDER VERSION in the Collection:          Model 67/54
=================================================================
                               Production Code = 53_1 = Jan. 1953


This version has  NO Inch-Ruler  and another PROFILE & CURSOR. It
came in  F.-C.'s  green artificial leather case with the imprints
»SIEMENS«  and the logos  »S+H«  and  »S+S«  indicating that this
SR was a gift of the well known ELECTRO COMPANY.

                    Historical Remarks ...
impressum:
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© C.HAMANN   http://public.beuth-hochschule.de/~hamann   12/11/10