Part of the Frick Collection Archives Repository
Koeckert Quartet, February 10, 1963, 1962-1963, Box: 12, Folder: 25. The Frick Collection Concert Records, TFC.0600.010. Frick Collection Archives.
Koeckert Quartet, February 10, 1963, 1962-1963, Box: 12, Folder: 25. The Frick Collection Concert Records, TFC.0600.010. Frick Collection Archives. https://archives.frick.org/repositories/3/archival_objects/22118 Accessed August 16, 2025.
