previous <<==>> next
ARISTO » COMMERZ II « ( 25 cm Scales )
ARISTO-Werke Dennert & Pape, Hamburg / Germany (1965)
**********************************************************************
VERSION (B)
S C A L E S of the A R I S T O » COMMERZ II « Model 965
======================================================================
Front Side Scales in [RED] & {GREEN} Back Side
======================================================================
( 0 ... 28 cm Ruler )
PERCENT-SCALE -50% .. 30 .. 0 .. 40 .. +100%
(DF) 3.6*X KZ K = Start-Kapital, Z = Zinsen
----------------------------------------------------------------------
[CF] [3.6*X] T2 = Tage ZZ3 (LL3) exp(X)
{CIF} {1/3.6*X} p2% = Prozentsatz ZZ2 (LL2) exp(0.1X)
ZZ1 (LL1) exp(0.01X)
{CI} {1/X} p1% = Prozentsatz [ZZ%] [ZinsesZinsen]
[C] [X] T1 = Tage T1 (C) X
----------------------------------------------------------------------
(D) X Z = Zinsen
Conversions ... M = Metric
Pound (£) Conversion Scales (s/d) Shilling
( 0 ... 11" Ruler )
R E M A R K S : There are 3 Model 965 in the Collection
======================================================================
OLDER VERSION (A) only DETAIL shown ...
------------------------------------------------
Production Code = GF01 = Geretsried, 1965, Lot 1
|
( 0 ... 28 cm Ruler only )
To use the ZZ & T1 Scales, the SLIDER HAS TO BE TURNED !!!
IN CONTRARY:
The very nice VERSIONS (B) & (C) are mounted on an ACRYLIC RULER BODY!
Slider is readable from the back side ( "mouse-over" the cursor !) ...
VERSION (B) ( shown on top )
------------------------------------------------
Production Code = GFO2 = Geretsried, 1965, Lot 2
The (DF),[CF]-Scales are folded at 3.6 * X for Days-of-the-Year.
Here the (German-) named scales are marked with their common symbols
in brackets: (DF),[CF],{CIF},{CI},[C],(D). The formula & translation:
Zinsen (in % ) = Z = ( K * p * n )/100 ; n = Jahre = Tage/360
( Z = Interest; K = Capital; p = Interest Rate;
ZZ = Compound Interest; n = Years; T = Days )
NEWER VERSION (C) ( not shown )
---------------------------------------------
Production Code = 2FX4 = Hamburg, 1969, Lot 4
SORRY: The SCALE ZZ% on the SLIDER's BACK SIDE is BLACK ( not red )