This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
DNST USS Barbel SS in SSK No. Dock . en At Dry Dock No which begin to fill with water the workers are manually turning the swivels to increase the flow On the Barbel SS crew members stand at the railing of the attack submarine as the dry dock in which it is positioned is filled with water to refloat the vessel following repairs