Part of the Frick Collection Archives Repository
Securities in Mercantile Safe Deposit, 1911, Box: 70, Folder: 21. Henry Clay Frick Papers, Series V: Subject Files, FFP.01.05. Frick Collection Archives.
Securities in Mercantile Safe Deposit, 1911, Box: 70, Folder: 21. Henry Clay Frick Papers, Series V: Subject Files, FFP.01.05. Frick Collection Archives. https://archives.frick.org/repositories/3/archival_objects/8777 Accessed April 21, 2025.
