Black-and-white photographic postcard showing the historic riverside buildings of St. Thomas’s Hospital in London, viewed across the River Thames from the Westminster side, c. 1910–1914; postally used 23 July 1914. Publisher: W. Straker Ltd., London. The British postal cancellation on the front is dated 23 JUL 14. The card was addressed to Bessines in the French département of Haute-Vienne and bears a French receiving postmark apparently dated 24 July 1914. The object is particularly interesting because the postal date places an ordinary tourist postcard within an extraordinary historical moment. 23 July 1914 was the day on which Austria-Hungary delivered its ultimatum to Serbia, one of the decisive events of the July Crisis that led to the First World War.