Deux sonates pour le piano forte, Opus 31, nos. 1-2. First edition. Zurich: Naiguili, [1803]. Item Information Material Type First edition Record Number Fe300 Works Opus 31, nos. 1-2 Catalog Concordance Kinsky/Halm, p. 79; Hoboken no. 170 Auction Information Auction House Sotheby's (London) Lot Number 19 Bibliographical Reference BJ index 1996-2005BJ 19/2 Date of Sale 12/7/2004 Sold to unknown Pricing Information Estimate Price 2000-2500 GBP Sale Price 2400 GBP Sale Price in U.S Currency $4680.00 Hammer Price 2000 GBP