Ludwig van BEETHOVEN. Sonata for Pianoforte, Op. 54 (Vienna, Office of Arts and Industry, [April 1806]); oblong folio-sized booklet of 14 pages and 1 blank folio, stapled. First edition. Engraved title page and music; catalog number 507. The printed price has been scratched out. Printed from worn plates. The numbering “LIme Sonate” (just like that of the first edition of the Sonata, Op. 57, “LIVme Sonate”) has puzzled the musical world for over two centuries (see Kinsky, pp. 127–28); no satisfactory explanation has been offered to date.