I bought the Platinum MD-150 and MT-350 about ten to fifteen years ago and haven’t seen them for sale again.
Does anyone know more about them?
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The MT-350 is quite popular in Chinese MP collection market. Many collectors found their MT-350 in the past decade. It’s highly possible that this is a model launched not in Japan but in Taiwan province, and that’s probably the reason it doesn’t show up on Japan’s market.
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AFAIK, the MD-150 later evolved to MD-200 and color became green
MT-350 was the last numbering of this square series, the former numbering was MT-300 and MT-250
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I purchased mine out of Taiwan back around 2010.
I have sold it since.
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I bought an MT-350 from Andriy in January 2010 
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