 At the 1962 American Numismatic Association convention , British numismatist David B. Spink announced that he was in possession of a theretofore unknown 1804 dollar specimen . The coin was housed in a yellow leather case embossed with an eagle and other ornamentation , conforming to the description of that made for the King of Siam . The set consisted of a half cent , cent , dime , quarter , half dollar , dollar , quarter eagle , half eagle and eagle . As all of the coins in the set were dated 1834 with the exception of the dollar and eagle , it provided the first definitive proof that an 1804 dollar was included in the diplomatic presentation sets . According to Spink , the set was offered to him by two women whom he believed were descendants of Anna Leonowens , tutor of the children of Rama IV ( half @-@ brother and heir of Rama III ) and fictionalized protagonist of the Rodgers and Hammerstein musical The King and I. 
