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:
USS Octans AF. en USS Octans AF drydocked in YFD at San Francisco June Octans was used to test the new Yard Floating Drydock which was long and wide and had nominal lift of tons Mare Island Navy Yard photo YFD dated navsource org htm Mare Island Navy Yard photo YFD Cargo ships of the United States Navy Floating drydocks