Part of the Frick Collection Archives Repository
#173: Peru Copper Mines [empty envelope], undated, Box: 32, Folder: 2. Henry Clay Frick Papers, Series V: Subject Files, FFP.01.05. Frick Collection Archives.
#173: Peru Copper Mines [empty envelope], undated, Box: 32, Folder: 2. Henry Clay Frick Papers, Series V: Subject Files, FFP.01.05. Frick Collection Archives. https://archives.frick.org/repositories/3/archival_objects/8310 Accessed May 13, 2025.