UNITED STATES. Lewis and Clark Exposition, 1905. Portland, OR. Silver "so-called-dollar" 33 mm. Official Medal. A female and two males in 19th Century dress striding toward the setting sun; SIGHTING THE PACIFIC 1805 above; OFFICIAL SOUVENIR... around near rim / Map of the Pacific Coast, British Columbia to San Francisco showing various trade ocean routes to the west, each distant destination named. HK-325. NGC MS62; a particularly attractive example, lustrous, light peripheral toning.