The four semifinalists for the Archives Treasures tourney are set. The 1859-60 Crosby Store ledger advanced to the semis after defeating the Washington territorial seal 52 percent to 48 percent in their quarterfinal matchup. The store ledger will face the 1906 Tenino Oregon Trail marker Thursday.

The first semi starts this afternoon when the 1969 Black Panther protest photos square off against the 1980 Mount St. Helens eruption documents.