Image showing the progress of construction on a 350-ton concrete steamship in Montreal, Canada. The vessel was launched in November 1917. This photograph was taken by photographer 5-15-19 and received by subject number AU Portland Cement Assoc. Chicago 53321. It is marked as for official use only, from October 10, 1917.

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Size: 8495px × 5726px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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