PURPOSE:To realize the Japanese yen price conversion of the gold, just by setting the scale and then reading the necessary area. CONSTITUTION:The Japanese yen price scale 2, reference point 3, yen exchange rate scale 7 and dollar price scale 8 are related in such way that the area corresponding to the yen exchange rate per dollar on scale 7 is set to point 3 and that the correspondence is secured via the converted value between scales 8 and 2. Under these conditions, scale 2 corresponding to the position of the dollar price per Troy ounce in London on scale 8 is read. Thus the yen price per gold gram can be obtained.
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