I`m rubbish at reading Japanese, can someone date this coin for me. Krause says there are 3 yr 34 -1901 yr37 - 1904 yr38 - 1905
That catalog should have the Chinese number system. The numbers to look for on the front of your coin (20 Sen side) are at one O'clock. The cross = 10 and the three parallel lines =3.
Here's some stuff on Japanese coin dating/reading (caution, do not google the phrase 'Japanese dating' if you are interested in coins only...) http://www.starcityhomer.com/reading-japanese-coins.html