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For the anime, see Ōban Star-Racers
The Ōban (大判) was the largest denomination, valued at 10 Ryōs. Here, a Keichō Ōban, minted from 1601.
Maneki Neko, with Ōban attached to collar

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.[1]

Keichō gold coinage: Ōban, Koban, Ichibuban, 1601-1695.

The first Oban – Tenshō Ōban (天正大判) – were minted by the Gotō family under the orders of Hideyoshi in 1588.[2]

The Tenshō Ōban was equivalent to ten Ryōs, or ten Koban (小判) plates, with a weight of 165 g.


  1. ^ Metzler p.15
  2. ^ The Cambridge History of Japan: Early modern Japan by John Whitney Hall p.61 [1]


  • Mark Metzler (2006). Lever of empire: the international gold standard and the crisis of liberalism in prewar Japan. Volume 17 of Twentieth Century Japan: The Emergence of a World Power. University of California Press.  
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