REISS - DARMSTADT ( 25 cm Scales )
REISS, Bad Liebenwerda / (GDR) Germany (1955)
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VERSION (A)
SCALES of the R E I S S LIGHT METAL » D A R M S T A D T «
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Front Side [ inverse / RED ] Back Side
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K X3 [Cos] [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 S sin(0.1X)
L lgX T tan(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 N E W E R V E R S I O N S in the Collection:
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Version (B1) 1970
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The BODY-ENDS are made different: Instead of glued blocks
under the scales, now the scales are embedded in the metal
ends and fixed with four metal pins:
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Version (B2) 1975
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Additional to new BODY-ENDS, also the CURSOR is different:
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