1536. PABLO CASALS (1876 - 1973) Spanish cellist, conductor and composer who achieved worldwide recognition as a virtuoso. A.L.S. 1p. 8vo., Paris, May 7, 1907 to Helene Kahn, in French. Casals mentions that his fiancée is still in Lisbon, but agrees to meet Miss Kahn for dinner, promising not to forget a photograph. Very good. $100 - 150