FREDERICK  P O S T  CO., Chicago, Illinois / USA              (1971)
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                                              made by  HEMMI / Japan

S C A L E S  of the  P O S T  » VERSALOG «  Bamboo-Based  Model 1460
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Front Side              [ inverse / RED or GREEN ]         Back Side
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[LL0]   exp(-X<-0.001 .. -0.01>)     L       lgX
K       X3                           [LL1]   exp(-X<-0.01 .. -0.1 >)
A       X2                           [LL2]   exp(-X<-0.1 ..  -1.0 >)
DF      πX                           [LL3]   exp(-X<-1.0 .. -10.0 >)
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CF      πX                           T       tan(0.1X) ; [cot(0.1X)]
[CIF]   [1/πX]                       SRT     arc(0.1X) ; [sec(0.1X)]
[CI]    [1/X]                        S       sin(0.1X) ; [cos(0.1X)]
C       X                            C       X
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D       X                            D       X
R1      sqrt(X< ODD-No-Digits>)      LL3     exp(X<1.0 .. 10.0>)
R2      sqrt(X<EVEN-No-Digits>)      LL2     exp(X<0.1  .. 1.0>)
LL0     exp(X<0.001 .. 0.01>)        LL1     exp(X<0.01 .. 0.1>)

REMARKS:
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This scale design is referred in the literature as   » VERSALOG II «

HEMMI introduced a year code, starts with  1950 = "A" ... 
and the month code starts with  Jan. = "A" ...  This slide
rule has the code "VJ", means it is made in October 1971.

                      Historical Remarks to POST ...
                      Historical Remarks to HEMMI ...
impressum:
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© C.HAMANN       http://public.BHT-Berlin.de/hamann         12/14/06