1. Bull-roarer Bookmark Bull-roarer, museum number 1-2679. Search result 1 Museum number: 1-2679 Culture or time period: Eastern Pomo and Northern Pomo Object class: Bull-roarers and Charred Function: 5.4 Secular and Religious Musical Instruments Dimensions: length 14.3 centimeters and diameter 3.8 centimeters Collector: Samuel A. Barrett Collection place: Coyote Valley, Mendocino County, California Collection date: 1902