1939 Oregon Trail Memorial. MS-66 (PCGS).，The satiny and smooth surfaces display handsome golden iridescence. The final Oregon Trail Memorial half dollar issues, the 1939, 1939-D and 1939-S were each produced to the extent of 3,000 coins and were first distributed as part of three-piece PDS sets by the Oregon Trail Memorial Association. The official sale price was $7.50 per set, up $1 per set from the previous year.，From the A.J. Vanderbilt Collection. Acquired directly from the Oregon Trail Memorial Association, 1939.，
