1928 Hawaiian Sesquicentennial. MS-64 (PCGS).This lustrous and attractive near-Gem is dusted with sandy-silver patina, the left reverse with a splash of bolder russet iridescence. Among design types of classic commemorative half dollars, the 1928 Hawaiian Sesquicentennial is the rarest and most desired. More than half of these were sold to residents of the Hawaiian Islands and thus passed into non-numismatic hands, resulting in many becoming impaired or damaged. In contrast, the other two key types of the commemorative series -- the 1935 Hudson Sesquicentennial and the 1935 Old Spanish Trail -- were nearly all sold to numismatists who preserved them carefully. The present piece would do nicely in a high grade collection.From the August Nagy Collection.