World War One US Army Keep Him Free War Savings Stamps Poster RARE. There is a tear on the right side of the poster other than that I don’t see any holes or any proof this poster was folded during its life. If you have any questions feel free to message us, we are your number one source for military war relics!! The item “World War One US Army Keep Him Free War Savings Stamps Poster RARE” is in sale since Tuesday, August 18, 2020. This item is in the category “Collectibles\Militaria\WW I (1914-18)\Original Period Items\United States\Posters & Prints”. The seller is “gwhistorian” and is located in South Milwaukee, Wisconsin. This item can be shipped worldwide.