"Numismatics" のタグがついた記事

The **1804 dollar** or **Bowed Liberty Dollar** was a dollar coin struck by the United States Mint, of which sixteen specimens are currently known to exist. Though dated 1804, none were struck in that year; all were minted in the 1830s or later. They were first created for use in special proof coin sets used as diplomatic gifts during Edmund Roberts' trips to Siam and Muscat.

Beginning in 1860 and continuing for several years, Britain replaced its copper coinage with bronze pieces. The copper coins (principally the penny, halfpenny and farthing) had been struck since 1797 in various sizes, all of which were seen as too large. Over time the copper metal wore or oxidised, or had advertising punched into it, and there were also counterfeits and foreign coins in circulation.