The French examples are dated (if at all) between 1919 and 1942, and probably all come from the same source, one Dr. Louis Viel of the Avenue Ledru-Rollin in Paris. The 2 longest, views of the spine, have his name on the verso, others have notes of the patients’ names, and what is the subject of the photograph. The Spanish one is a production of the Gabinete Médico de Röntgenologia in Barcelona, founded in the earliest days of the introduction of ‘Röntgenologia’ into Spain by the pioneers César Comas Llabería and Agustín Prió Llabería in 1896. This photograph probably dates to around 1912.