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NESTLER - DARMSTADT   ( 25 cm Scales )



Albert Nestler, Lahr in Baden / Germany              (1960)
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S C A L E S  of the   NESTLER   » DARMSTADT «    Model 0210
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Front Side       [ inverse / RED ]                Back Side
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( 0 ...  27 cm Ruler )

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

REMARKS:
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This historic wooden model is the follower of Model »No.21«
On its back side are conversion tables in French.  The
slide rule came in a black cardboard case.

Historical Remarks ...

Both Cursor glasses were broken und replaced by PVC - The
hairlines are made (precise!) with a sharp » X-ACTO « and
colored with permanent markers.  Notice the non-symmetry: 
Following the build-in mark on top of the cursor ( refer to
the lgX ), the cursor marks had to be made out of center!
"MouseOver" the cursor in the picture above to get a
DETAILED VIEW of it ...

impressum:
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http://public.beuth-hochschule.de/~hamann         10/11/07