Part of the Frick Collection Archives Repository
#139: McKeesport Brick Co. [empty envelope], undated, Box: 21, Folder: 11. Henry Clay Frick Papers, Series V: Subject Files, FFP.01.05. Frick Collection Archives.
#139: McKeesport Brick Co. [empty envelope], undated, Box: 21, Folder: 11. Henry Clay Frick Papers, Series V: Subject Files, FFP.01.05. Frick Collection Archives. https://archives.frick.org/repositories/3/archival_objects/8262 Accessed June 07, 2025.
