- Felix Salzer papers /
- Series 2: Heinrich Schenker Nachlass /
- Sub-series 6: Analyses of Bach, Beethoven, Brahms, Schubert (Mappe 29) /
- Brahms /
- 29/29 /
- Booklet: Sketch (in levels), Symphony no. 1, op. 68, 2nd movement, mm. 1-27; in the hand of Angi Elias