1882 (Yr. 15) Japan Yen - Authentic?

That one looks pretty good and as a year 27/1894 would be less likely to be copied. I'd want to know a precise diameter and weight too. If you don't have a scale that is good to hundredths of a gram maybe you can take it to a local coin shop to get weighed and measured.

Back to the trade dollar above (now that I'm awake and have my catalog at the same time), a little more than three million were minted from 1875-1877 and were to compete with the other trade dollars. Vs. the yen, it was increased from 26.96 grams to 27.22, which is the difference of 416 to 420 grains apparently. (Edited to add: found a grain to gram calculator and that does work out when rounding to the hundredths)

 

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Hello, annoyingly my (kitchen) scale rounds at 2 decimal places but it tells me its 27gms. Which I'm guessing would probably lend some authenticity to the 26.96 official weight.

 

@debshugg - your Meiji Dragon looks fine to me. I also have that same coin with the same year.

These are just awesome coins in general.

And yes, your 27g sounds close enough to the official 28.96g given the margin of error of your scale (and many scales).