Part of the Frick Collection Archives Repository
9. Stained Glass & Glass. Rosenberg & Stiebel Archive, MS.065. Frick Collection Archives.
9. Stained Glass & Glass. Rosenberg & Stiebel Archive, MS.065. Frick Collection Archives. https://archives.frick.org/repositories/3/archival_objects/36228 Accessed February 04, 2026.
