World War I Postcards
"The Gray postcard site features a collection of war-themed cards produced in Great Britain, France, Italy, Germany, Russia, and the U.S. during World War One (1914-1918). More than 6,400 cards will eventually be displayed in a CONTENTdm collection. These will be searchable and browsable by different categories. The cards were collected as mementos of a world at war during the second decade of the 20th century. "