You don't usually see colorfully toned gold coins. Bought this one raw in a Japanese auction. There were maybe 10-15 similar toned examples, including (in my opinion) several of questionable authenticity. Of the ones I thought were genuine, this one had some of the nicest toning. Just graded at PCGS MS63.
Pretty nice tone! These have a higher probability to tone as their gold content are pretty low. Around 50% if I recall correctly.
