"'The Arch of Alexander Severus in Rome', c 1860."
© Royal Photographic Society Collection / NMeM / Science & Society Picture Library
"Albumen print. Photograph by Robert Macpherson. This may actually be the Arch of Septimius Severus, and not that of Alexander Severus. The triumphal arch of Lucius Septimius Severus, Roman general and emperor, was built c 205 AD/CE."