Geord Eastman First Day Cover signed by famous Photographers Yousuf Karsh and Richard Avedon. "Yousuf Karsh (December 23, 1908 - July 13, 2002) was an Armenian "Canadian portrait photographer. He has been called one of the great portrait photographers of the 20th century by Time magazine and the Metropolitan Museum of Art. " Famous photographs of Ernest Hemingway, Winston Churchill, Frank Lloyd Wright, Kennedy etc are just a tiny sample of the iconic images he captured.Richard Avedon (May 15, 1923 - October 1, 2004) was an American fashion and portrait master photographer of the 2oth century.