VEB MANTISSA, Dresden / (GDR) Germany (1975)
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VERSION (B)
SCALES of the MANTISSA » DARMSTADT II « Nr.1731523/4
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Front Side [ inverse / RED ] Back Side
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K X3 [P] [sqrt(1 - (0.1X)2)]
A X2 ST arc(0.01X)
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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 D X
L lgX T tan(0.1X)
S sin(0.1X)
R E M A R K S : ( 1° = 60' ; 1' = 60" )
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The TRIGONOMETRIC SCALES are divided in MINUTES & SECONDS
There are 2 Versions Nr.1731523/4 in the Collection
Newer Version (B)
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It was found in a flea market "Sealed, New-In-the-Box".
The CURSOR had changed and the booklet's HEADLINE and
the LABEL on the back side of the brown cardboard case
reads now » MANTISSA «.
Older Version (A)
The slide rule came in a brown cardboard case together
with a booklet.
Historical Remarks ...
impressum:
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© C.HAMANN http://public.BHT-Berlin.de/hamann 09/24/07
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