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LUTZ  MODEL  252  ( 25 cm Scales )



LUTZ / USA                                               (1960)
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Made in Japan  by  RELAY / RICOH          for the US GOVERNMENT

S C A L E S   of  the   LUTZ / US GOVERNMENT          Model 252
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Front Side          [ inverse / RED ]                 Back Side
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                               K        X3
DF        πX                   A        X2
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CF        πX                   B        X2
[CIF]     [1/πX]               T1       tan(0.1X) ; [cot(0.1X)]
                               T2       tan(X) ; [cot(X)]
[CI]      [1/X]                ST       arc(0.01X)
C         X                    S        sin(0.1X) ; [cos(0.1X)]
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D         X                    D        X
L         lgX                  [DI]     [1/X] 

R E M A R K S :
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Right on the slider is the ENGRAVEMENT  »U.S.« = US GOVERNMENT.
This SR is made of bamboo and came in a brown leather case.

                   Historical Remarks ...
impressum:
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© C.HAMANN  http://public.beuth-hochschule.de/~hamann  11/11/11