Platinum Pen Co., Ltd. was founded in 1919 by Toshiichi Nakata to build fountain pens. In 1949, Platinum Pen received first prize in the first international pen exhibition in Japan. In 1957, as a forerunner in the industry, Platinum Pen started selling a type of fountain pens that is refillable with an ink cartridge, called the "Platinum Honest 60". In 1958, the company sent testers to try this fountain pen in the Himalaya Mountains and proved that the ink does not leak despite the low atmospheric pressure.
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