the price

There was a content of the coins of course.
1ryō(gold coin) = silver coin 50 monme = copper coin 3840 mon

1 ryō is 4,76 monme.
And the gold content is 86,79%.

4,76×3，75×0、8679＝15、492015
　
Silver content of silver coin was 80%.
50×3，75×0，8＝150g　

Copper was probably copper.(brass, iron)

Gold 15、492015g = Silver 150g = Copper 14400g

According to the site of Tokyo commodity exchange.
(as of Jun 17, 2013 19:15)
　
http://www.tocom.or.jp/souba/gold/index.html
　
Gold 1g was ¥ 4,245.
Silver 1g was  ¥ 66,2.

4245×15、492015＝65763,603675
66,2×150＝9930

Of course ¥65764 is not ¥9930.


・・・・・・・・・
　
　
"1 ryō is price of 1 koku(石)."　

First,Tokugawa regime was defined so about 1 ryō.　
1 koku was rice about 180 liter.
　
180 liter ≒ 180 kg.　
Currently, rice 10 kg is about ¥ 4,000.　
　
4000 × 18 ＝ 72000

1 ryō : 1 koku
Gold : Rice
¥65764 : ¥72000
(¥65764 is the current price of gold, which is included in 1 ryō.)

2010 and 1600.
Balance of the price of rice and gold.
It does not change so much.

Probably value of gold was much the same now.
And value of silver was very higher than now.

65764 ÷ 9930 ＝ 6,6227593152

At that time in 1600、Silver was the price of about 6,6 times than now.


・・・・・・・・・


Gold 15、492015g = Silver 150g (at early 17th century)

150 ÷ 15、492015 ＝ 9,6824073563

Gold 1 = Silver 9,6824073563 (at early 17th century)

Gold 1g ¥ 4,245. (Jun 17, 2013 19:15)
Silver 1g ¥ 66,2.(Jun 17, 2013 19:15)

4,245 ÷ 66,2 ＝ 64,1238670694

Gold 1 = Silver 64,1238670694 (Jun 17, 2013 19:15)
　
Early 17th century，The price of silver of Japan was clearly higher.
I understood so.

"At that time,Price of silver of Japan was cheaper than neighboring countries.
Therefore many silver flowed out to overseas as exports."
However,It was written so in the electronic dictionary.
Of course I had strange feeling to it.　
　
I was examined this at ”money”.（貨幣/kahei）　
Next，I was examined this at ”price comparison of gold and silver”.
（金銀比価/kingin－hika）