Template:Number-10-flickr

This image was posted to the official Number 10 Flickr feed, which on its about page gives the following declaration:

All content is Crown copyright and re-usable under the Open Government Licence v3.0, except where otherwise stated. To view this licence, visit: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/

Since all content posted to Flickr must have a licence other than OGL3, this image, despite possibly having a non-free licence on the source page, can be assumed to be multi-licensed under the following terms: