This image appears in colour in “Autour du monde, aquarelles, souvenirs de voyages XL, En Perse. Types, costumes et Moeurs” published by L Boulanger, Paris, c1890 and is titled “Teheran, Porte du Palais du Shah, Avenue des Diamants” (CCCXIII). The photogravure is from a set of eight Persian images by Antoin Sevruguin and was printed by Charles Gillot (1853-1903), a Paris based engraver and art collector who incorporated the photographic discoveries of Daguerre and Niepce into his engraving techniques and ultimately perfected a process for reproducing book illustrations in colour. The image has the number “682” in white ink on recto.