The First Spouse coins from the U.S. Mint have a face value of $10 and contain 1/2 oz of pure 24 karat gold, making the metal value alone worth quite a bit on the bullion market. Since very few of the coins have been certified in perfect MS70 condition by NGC, demand has been rising and they could prove to be the type of "sleeper coins" that expert investors seek out.
Frances Clara Cleveland Preston, the wife of President Grover Cleveland, became first lady at the age of 21. She was the youngest first lady of a sitting president and still remains to this day. She was First lady of the Unites States from 1886 to 1889 and again from 1893 to 1897
Obverse: Features Frances Cleveland.
Reverse: Frances Cleveland shaking hands with female workers