Foch, Ferdinand - Typed Letter Signed 1921

French general and military theorist (1851-1929), who was the Supreme Commander of Allied Forces in World War I.  Typed letter with his letterhead, signed by the general in black fountain pen ink, written in French (sold untranslated), dated March 16th, 1921.  Size is 5.1 x 8.1 inches, 2 pages, central fold, in excellent condition.