During Culin’s visits to Japan, Seifu Shimizu — director of a major Tokyo trading company, artist, calligrapher, and leading Meiji Era collector of omocha (toys) — was in the midst of publishing the ten-volume Unai no tomo, comprised of charming woodblock prints of traditional objects of play. The founder of Odomokai (十八番クラブ), a Connoisseur’s Club to advance the appreciation of tomo (“playfellows” or “companions”), Shimizu treasured Japanese toys. […] Browsing through these catalogs we meet: jack-in-the-box chickens; whales on wheels and magnetic mice; a clay sumo wrestler grappling an orange carp; and popguns, hobbyhorses, and noisemakers galore.

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Public Domain Review - Unai no tomo: Catalogues of Japanese Toys (1891–1923)

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Metropolitan Museum of Art Libraries: Digital Collections - Unai no tomo