Brahms, Johannes. (1833–1897) Variationen über ein Thema von Robert Schumann für Pianoforte zu vier Händen. Op. 23.Upright folio. 25 pp. [PN] 270. McCorkle p. 80; Hansen p. 48 49; Cat. Hoboken 4 No. 30. Very rare first edition of the composition dedicated to Julie Schumann and based on a theme by her father. The ornate title page lithography is by Krtzschmer, whose name is printed lower right. Foxed, small water stain upper left corner throughout, occasional fingerings in pencil. "These variations were written for piano four hands, a chamber rather than a public