I have seen more than one of these with Samick (Korea) serial numbers on them. And why would the 520 be Korean but the 320 Japanese, anyway? Wouldn't make sense. --Cosmicdustjunkie (talk) 05:14, May 2, 2017 (UTC)

Thanks for the heads up. My research uncovered the same things you found and I've updated the article to take this information into account. Let me know if you see anything else that looks amiss.  \m/ DeeJayKTalk! 14:38, May 2, 2017 (UTC)
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