coins have been made in special shapes, including guitars, pyramids, and maps. There is a list with more unusual shapes of non-circulating commemorative...

accurately approximated by Reuleaux polygons. They have been applied in coinage shapes. If P {\displaystyle P} is a convex polygon with an odd number of sides...

level surface. Another application of curves of constant width is for coinage shapes, where regular Reuleaux polygons are a common choice. The possibility...

The standard circulating coinage of the United Kingdom, British Crown Dependencies and British Overseas Territories is denominated in pennies and pounds...

in several shapes, including squares, polygons, and wavy edged circles with 8 and 12 waves. Historically, a considerable variety of coinage metals (including...

the Persians issued their own coinage, a continuation of Lydian coinage under Persian rule is likely. Achaemenid coinage includes the official imperial...

Coinage of India The Coinage of India began anywhere between early 1st millennium BCE to the 6th century BCE, and consisted mainly of copper and silver...

Panormus, modern Palermo). The coinage that these communities produced is known as Siculo-Punic coinage. Like the coinage produced by the Greek communities...

Ancient Chinese coinage includes some of the earliest known coins. These coins, used as early as the Spring and Autumn period (770–476 BCE), took the...

The earliest coinage of Asia is also the oldest coinage of the world.[citation needed] Coins were invented several times independently of each other. The...