Vintage 4.5X2.5 lined page signed in black fountain pen ink, "Sincerely yours, Cyrus H. K. Curtis." Affixed to another page. 

(1850-1933) Cyrus Hermann Kotzschmar Curtis was an American publisher of magazines and newspapers, including the Ladies' Home Journal and The Saturday Evening Post.

Comes with a full Letter of Authenticity from Todd Mueller Authentics.