Photograph taken on February 15, 1919, at David Lupton's Sons Co. plant in Philadelphia, PA. The image captures the manufacturing process of Mark I 240 mm and 6" trench mortars for the government. Parts for 240 mm trench mortars and 6" Newton Stokes can be seen in the picture. This photograph holds the official use status.

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Size: 8565px × 5795px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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