Part of the Frick Collection Archives Repository
Soundproofing, 1933-1935, Box: 32, Folder: 13. The Frick Collection Central Files, TFC.0400.010. Frick Collection Archives.
Soundproofing, 1933-1935, Box: 32, Folder: 13. The Frick Collection Central Files, TFC.0400.010. Frick Collection Archives. https://archives.frick.org/repositories/3/archival_objects/20768 Accessed August 17, 2025.
