Typed Letter Signed, thanking his correspondent for his letter describing the the forthcoming ballet season, glad for the example of Rene Blum, wishing his correspondent success in his enterprises. In French. 1 page 8 x 5 inches, in very good condition. Monaco, 31 January, no year given. Prince Pierre of Monaco, Duke of Valentinois (1895 –1964), father of Rainier III of Monaco. He was a promoter of art, music, and literature in Monaco.