page_title: Coinage shapes
hierarchical_section_title: Coinage shapes
caption_attribution_description: English: Tenpo-tsuho-chokaku 日本語: 天保通宝本座長郭
context_page_description: Although the vast majority of coins are round, coins are made in a variety of other shapes, including squares, diamonds, hexagons, heptagons, octagons, decagons, and dodecagons. They have also been struck with scalloped edges, and with holes in the middle. Coins in the shape of polygons often have rounded edges or are Reuleaux polygons.
  There is a list with more unusual shapes of non-circulating commemorative coins at the end of this page, that all have been issued officially by various countries.
context_section_description: Although the vast majority of coins are round, coins are made in a variety of other shapes, including squares, diamonds, hexagons, heptagons, octagons, decagons, and dodecagons. They have also been struck with scalloped (wavy) edges, and with holes in the middle. Coins in the shape of polygons often have rounded edges or are Reuleaux polygons.
  This article focuses mainly on circulating coins; a number of non-circulating commemorative coins have been made in special shapes, including guitars, pyramids, and maps . There is a list with more unusual shapes of non-circulating commemorative coins at the end of this page, that all have been issued officially by various countries.
caption: The Tenpō Tsūhō, a Japanese coin from the 19th-century.
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