introduction BEGINNINGS: THE PHOEBE HEARST ERA (1902-1920) TRANSITION (1920-1945) North American Ethnology Californian Archaeology 01. Tube, bone 02. Figurine, incised clay 03. Disk beads, clam shell EXPANSION (1945-1960) CULMINATION (1960-1980) RECENT YEARS (1980-2001) RECENT ACQUISITIONS Disk beads, clam shell Collected by Henry Gibbs, 1931, acc. 1942. L–11110 Clam shell disk beads, traded from the coast, are a marker of the “Protohistoric” period in this area, 1500–1770 A.D.