Photograph of the Petra String Quartet, 1985-1986 Folio-Box 10 (MS 10439) Unit ID: 80 Date: 1985/1986
Photograph of the Petra String Quartet, 1985-1986 Folio-Box 10 (MS 10439) Unit ID: 80 Date: 1985/1986
Photograph of the Quartetto Beethoven di Roma, 2 August 1975 Folio-Box 10 (MS 10439) Unit ID: 86 Date: 2 August 1975