1. Beads Bookmark Museum number: 1-229964 Culture or time period: Middle/Late Horizon Transition: Calhoun facies (700–900 AD) Object class: Beads (pierced objects) Collector: Zenon S. Pohorecky Collection place: CA-Sac-113 (Calquhoun Mound 1), Sacramento County, California Collection date: 1962 Taxon: Olivella biplicata