Yamamoto Fountain Pen Friendly Paper – OK Fools


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OK Fools was the first Fool’s Cap paper produced in Japan by Ohtori Paper. In Japan, the term “Fools Paper” has long been used to refer to high-end writing paper. British Fool’s Cap paper was first imported into Japan in the late 1800s. The popular Japanese version was produced at the Oji Ogura Factory, where the name OK comes from. While the current iteration is being made by Nippon Paper Industries Yatsushiro Factory, they have kept the OK name for brand recognition. Our ink tests with blue and black Sailor and Platinum inks showed no feathering nor bleed-through. Very wet redish-pinkish J. Herbin inks showed slight feathering and bleed-through. We recommend writing with Medium or finer nibs.

Grain direction: Long grain
Size: A4
11.75 x 8.25 inches
296 x 210 mm

Additional information

Weight 18 oz
Dimensions 12 × 9 × 1 in

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