DescriptionAlcatraz Pen.jpg English: Located in San Francisco Bay Date 7 August 2015, 14:00:01 Source Own work Author Kgriff2002...
com/photos/internetarchivebookimages/14577505049/ operator: Flickr URL: https://live.staticflickr.com/2907/14577505049_e0aa9530ff_o.jpg determination method: SHA-1...