Part of the Frick Collection Archives Repository
Volume 6, 1891-1894, Box: 11-12. Henry Clay Frick Papers, Series X: Invoice Books, FFP.01.10. Frick Collection Archives.
Volume 6, 1891-1894, Box: 11-12. Henry Clay Frick Papers, Series X: Invoice Books, FFP.01.10. Frick Collection Archives. https://archives.frick.org/repositories/3/archival_objects/9239 Accessed February 26, 2025.
