Series 4. International Union Materials (boxes S4/Box 1-S4/Box 3), 1934–1973

This series includes materials regarding two international unions, the Federation of Flat Glass Workers and the United Glass, Ceramic, and Silica Sand Workers. The Federation of Flat Glass Workers materials include the union constitution and meeting minutes. The United Glass, Ceramic, and Silica Sand Workers materials include arbitration case files, bound issues of “The Glass Workers News” (the official union publication), and conference materials.