Brotherhood Week, Broadside, "If the Mainspring won't work with the Balance Wheel...", id121569, Box: 118, Folder: 10, Item: 2. Jewish Federation Council of Greater Los Angeles, Community Relations Committee Collection, Part 3, URB-CRC3. Special Collections & Archives. https://findingaids.csun.edu/repositories/2/archival_objects/96152 Accessed June 19, 2026.