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Citation
Collier, John, Jr. Steel-saving glass-top jars recommended by the War Production Board, Containers Division, for home canning of the Victory garden fruits and vegetables in 1943. Second step is to place the lid directly on top of the ring on the jar mouth which must be smooth, even and clean. To make a snug seal, lid and ring are screwed down with the threaded steel band . 1943. Negative. Library of Congress: Prints and Photographs Division. http://www.loc.gov/pictures/item/2017847467/ (Accessed December 27, 2018).