United Mine Workers of America Local Union Block Coal Field of Indiana District No. 8 seal press plate, undated

United Mine Workers of America Local Union Block Coal Field of Indiana District No. 8 seal press plate, undated, Box: 76d, Folder: 2. J. Davitt McAteer Papers regarding Mining Safety, A&M 4219. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/112823 Accessed November 23, 2024.