1937-D Oregon Trail Memorial. MS-68+ (PCGS).A truly magnificent jewel featuring a rich blend of orange, magenta, and sapphire iridescence at the borders. The centers remain largely brilliant and showcase the intensely satiny luster that blankets each side. Sharply struck and impressively smooth under scrutiny. The Oregon Trail Memorial half dollar is among the most popular and coveted issues from the Classic Commemorative series, and this particular example is among the finest known. Only two have been graded higher by PCGS at MS-69, making this piece an important opportunity for Registry Set participants.