Albert Nestler, Lahr in Baden / Germany               (1957)
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S C A L E S  of the   N E S T L E R   » RIETZ «   Model 0208
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Front Side                                         Back Side
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( 0 ...  27 cm Ruler )

A        X2
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B        X2                    S       sin(0.01X); sin(0.1X)
                               L       lgX
C        X                     T       tan(0.1X)
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D        X

R E M A R K S :                   (  1° = 60' ;   1' = 60" )
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The  TRIGONOMETRIC SCALES  are divided in  MINUTES & SECONDS

S keyed to A/B ;  T keyed to C/D

This is an economic plastic model with its soft case. On the
back side of the SR is a table with physical constants and a
BLIND PRINT "57", means produced in 1957.

                   Historical Remarks ...
impressum:
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© C.HAMANN    http://public.BHT-Berlin.de/hamann    09/10/09