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NESTLER - DARMSTADT ( 25 cm Scales )
Albert Nestler, Lahr in Baden / Germany (1965)
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VERSION (B)
S C A L E S of the NESTLER » DARMSTADT « Model 0218
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Front Side [ inverse / RED ] Back Side
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( 0 ... 27 cm Ruler )
L lgX
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)]
S sin(0.1X) ; [cos(0.1X)]
T tan(0.1X) ; [cot(0.1X)]
REMARKS:
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The slide rule came in a BLUE HARD PLASTIC BOX. On the back side
of the slide rule is a table with physical constants.
There is a Newer (1968) VERSION (C) in the Collection:
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This slide rule came in a BROWN LEATHER CASE. The scales are
the same, but the name »NESTLER« and the ID is printed on the
upper-right CORNER. The scales are named L,K,A/B,CI,C/D,P,S,T
and the SLIDER is colored GREEN.
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There is an Older (1960) VERSION (A) in the Collection:
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This slide rule came in a BLUE CARDBOARD case. The scales are
the same, but the name »NESTLER« is printed on the upper-right
CORNER and its ID ( » Nr.0218-Darmstadt « ) is HIDDEN in the
BODY under the slider. It came with a METAL-FRAMED CURSOR ...
... The CURSOR GLASS was broken and is now replaced by PVC from
a CD-Case. The 3 HAIRLINES are made (precise!) with a sharp
» X-ACTO « and colored with a permanent marker.