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The koban (小判) was a Japanese oval gold coin, cast on the order of Tokugawa Ieyasu in Edo period (Keichō era) feudal Japan and a part of Tokugawa coinage.[1][2]
- ^ Kobata, A. (1965). "The Production and Uses of Gold and Silver in Sixteenth- and Seventeenth-Century Japan". The Economic History Review. 18 (2): 245–266. doi:10.2307/2592093. ISSN 0013-0117. JSTOR 2592093.
- ^ Lucassen, Jan (2007). Wages and Currency: Global Comparisons from Antiquity to the Twentieth Century. Peter Lang. ISBN 978-3-03910-782-7.