Okada Domain, Silver 1 Fun, unknown date.
On reverse 丙辰改 53th year of Chinese 60 year zodiac cycle.
This reduce possibility of the year to 1736, 1796, or 1856.
Here is my pure opinion and could be wrong:{
I would say 1736 is most unlikely as Okada scrips began in 1732, and time limit regulation was 15 year so there was no need for revision.
There are scrips that were revised in 1741, which is quite weird.
Also there are scrips revised in 1858, so it weird to have scrips revised in 1856, but I don't know why I feel 1856 could be more likely than 1796.
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