Ignaz PADEREWSKI (1860–1941). Autograph letter, Paris, August 10, 1892, to the Marquise de Castrone [Mathilde Marchesi]; 2 pages, in-8 format, with envelope. He recommends to her “a singer of great talent and considerable renown,” Amy Sherwin (1855–1935). “Since her husband, Mr. Goerlitz, is my secretary and friend, I take a keen interest in her; therefore, I would be most grateful, Madam, if you would be so kind as to offer her some advice that will, quite rightly, make her very proud and happy”…