A traditionally carved Hawaiian koa wood bowl; a 1904 dog show trophy; an original print of the the Lewis and Clark map.

ANTIQUES ROADSHOW concludes its sojourn on the banks of the Columbia River in Portland, Oregon, where appraisers at the Oregon Convention Center net a catch of fascinating objects, including a traditionally carved Hawaiian koa wood bowl so large it probably belonged to royalty - and is such a magnificent specimen of ancient craftsmanship, even the repaired cracks increase its value; a 1904 dog show trophy whose art nouveau hammered copper, silver and stag horn composition makes it a very distinguished thrift store find; and an original print of the map that revolutionized our understanding of the American landscape - the Lewis and Clark report of 1814 - conservatively valued today at $45,000.