During World War I, some 330,000 Australians served overseas, and the letters and postcards they wrote became treasured keepsakes for their families and friends. The war years of 1914-18 coincided with the “golden age” of the postcard and saw the production of millions of embroidered silk postcards. France was the largest source, and hundreds of designs catered specifically to members of the Australian, New Zealand, British, French, Canadian or South African armed forces.