Just before September 28.th 1850, U.S. half dollars with the years 1848,1849 and 1850 and quarter dollars with the year 1849 were stamped with a crowned FRVII for circulation in the Danish West Indies as shown in the Standard World Coin catalog of Krause & Mishler 1801-1900.
In 1859, coins were introduced in denominations of 1, 3, 5, 10 and 20 cents.