Jisho

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Noun, Noun which may take the genitive case particle 'no'
1. large size (paper, book, etc.)
Noun
2. ōban; large oval gold coin used in the Edo periodHistorical term, See also 小判
Wikipedia definition
3. ŌbanFor the anime, see Ōban Star-Racers An Ōban was a monetary ovoid gold plate, and the largest denomination of Tokugawa coinage. Tokugawa coinage worked according to a triple monetary standard, using gold, silver and bronze coins, each with their own denominations. The first Oban were minted by the Gotō family under the orders of Hideyoshi in 1588. The Ōban (大判) was equivalent to ten Ryōs, or ten Koban (小判) plates, with a weight of 165 g.
Read “Ōban” on English Wikipedia
Read “大判” on Japanese Wikipedia
Read “Ōban” on DBpedia

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