File:Hoxsey Cancer Clinic Bottle (33304994272).jpg

Photograph of a surviving bottle of Harry Hoxsey's internal tonic, held by the U.S. Food and Drug Administration and published to the FDA's own official Flickr account (fdaphotos, https://www.flickr.com/photos/fdaphotos/33304994272/) on 12 June 2014. Rights confirmed directly via the Wikimedia Commons file page: public domain as a U.S. government work. The bottle's label, legible in the photograph and read directly from the image (not machine-fetched, so not covered by a verify-quotes block), reads Hoxsey Cancer Clinic, 4507 Gaston Avenue, Dallas, Texas, with dosing instructions for one teaspoonful after meals and at bedtime in water, and Keep cool. Commons file page fetched directly for description, date, author, license, and resolution.