German composer, pianist, and music teacher (1862–1942) who was one of Franz Liszt’s pupils, considered one of the most distinguished pianists of his generation. Two items: uncommon 4.25 x 6.5 cabinet photo of von Sauer by H. S. Mendelssohn of London, signed on the mount in black ink and dated March 1904; and an untranslated LS in German, signed “Emil Sauer,” three pages on two adjoining sheets, 5 x 7.75, October 12, 1894. Significant chipping to lower corners of the cabinet photo, otherwise overall fine condition. Originates from the collection of American violinist and pianist Louis Persinger (1887–1966), who trained at the Leipzig Conservatory and later taught at Juilliard, mentoring the likes of Yehudi Menuhin, Ruggiero Ricci, and Isaac Stern. RR Auction COA.