Autograph manuscript of the first movement of the Sonata for Violoncello and Piano in A Major, Opus 69, signed with autograph title. 16 p., oblong folio, stitching holes, watermark: KOTENSCHLOS” Item Information Material Type Autograph ms. Record Number Am5 Works Opus 69 Previous Owners Felix Salzer Provenance Felix Salzer Auction Information Auction House Sotheby's (London) Lot Number 6 Bibliographical Reference BN 5/2BJ auction index 1985-1995 Date of Sale 5/17/1990 Seller Felix Salzer Sold to Institution outside U.S. Pricing Information Estimate Price 400,000-500,000 GBP Sale Price 500000 GBP Sale Price in U.S Currency $892000.00