Rundmünzen

Rundmünzen are coins that are circular in shape. This is the most common shape for coins used in modern currency systems. The circular form is practical for several reasons, including ease of handling, stacking, and minting. Historically, while coins were not always perfectly circular, the round shape became a dominant standard due to its efficiency in manufacturing and circulation.

The production of rundmünzen involves striking a blank metal disc, known as a flan, between two dies. The dies are engraved with the design that will appear on the coin's obverse and reverse. The circular shape of the flan ensures that the design is applied evenly across its surface and that the coin is easy to roll and sort. This standardization also simplifies the operation of vending machines and other coin-operated devices.

The term "Rundmünzen" is German for "round coins." While many currencies worldwide use round coins, the specific term might be used in contexts where a distinction is being made from other shapes or historical forms of currency. The widespread adoption of the circular design has made it a universal symbol of coinage.