Manufacture of big guns at Government Arsenal in Watervliet, A 12" gun is being lifted from a 90' shrinking pit, where a temperature of 800 degrees is maintained. After receiving the recoil band, the gun is lifted. This process takes about 20 hours, including 12 hours to heat the recoil band and 8 hours for cooling off. 16" guns undergo the same procedure. The photograph was taken by , on April 17, 1918. It was approved and released on April 20, 1918.

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Size: 9183px × 6305px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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