1. Add MS 62866 Reference (shelfmark): Add MS 62866 Title: Scope & Content: SEIBER COLLECTION. Vol. LXXXIII. Concert Piece and Violin Sonata; circa 1954, 1960. Mostly pencil sketches. See also 62805 and 62807 above. ff. 18. 264 x 359mm. Collection Area: Music Collections Languages: English Date Range: 1949-1960 Extent: 1 item