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NESTLER   POCKET - RIETZ   ( 12.5 cm Scales )
Have a look at an Older Model


Albert Nestler, Lahr in Baden / Germany            (1965)
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                                     "Newest" VERSION ...

S C A L E S  of  the  NESTLER   P O C K E T   » RIETZ-S «
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Front Side                                      Back Side
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( 0 ...  13 cm Ruler )

K        X3
A        X2
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B        X2                          S         sin(0.1X)
CI       1/X                         ST        arc(0.01X)
C        X                           T         tan(0.1X)
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D        X
L        lgX

There are more  POCKET  » RIETZ «  in the collection. All
came in black leather cases ...

VERSION (B)               named  Model   »0123«    (1960)
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The TRIGONOMETRIC SCALES are DECIMAL divided.  Body Shape
and Scales are like Model  » S «  -  but  1/X  is in RED. 
This Pocket SR was a  gift of the AUER-MESSTECHNIK as the
print on its back side reads ...

   

VERSION (A)               named  Model   »0123«    (1955)
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The TRIGONOMETRIC SCALES are divided in MINUTES & SECONDS
Body Shape & Scales are THE SAME as the  old model  »11R«

   

                   Historical Remarks ...
impressum:
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http://public.beuth-hochschule.de/~hamann        09/10/09