This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help.
Summary
DescriptionPrincess Anne's Battery and gib.jpg
English: Princess Anne's Battery has the distinction of being the only complete battery of four 5.25 inch dual purpose Anti-Aircraft/Coastal Defence Guns in the world.
Date
Source
https://www.flickr.com/photos/mosh70/9009776861/
Author
Moshi Anahory
Camera location
36° 08′ 43.92″ N, 5° 20′ 45.16″ W
View this and other nearby images on: OpenStreetMap
36.145533; -5.345878
Licensing
This image was originally posted to Flickr. Its license was verified as "cc-by-sa-2.0" by the UploadWizard Extension at the time it was transferred to Commons. See the license information for further details.
This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
You are free:
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.