By laws, minutes of the Executive Board, General Council, and Membership meetings, correspondence, membership reports, grievance and arbitration records, contract negotiation proposals and counter-proposals, strike materials, and publications documenting the administration, activities and membership of Local 206, International Union of Electrical, Radio and Machine Workers, from 1936 to 1986. Although affiliated with regional labor organizations, Local 206 primarily represented workers at the American Bosch plant in Springfield, Massachusetts.

The papers occupy 14.5 feet, and are divided into five series, including Administration, 1942-1983, Correspondence, Company-Union Relations, Publications, and Membership.

This collection is organized into five series:

• Series 1. Administration, 1942-1983
• Series 2. Correspondence
• Series 3. Company-Union Relations
• Series 4. Publications
• Series 5. Membership