Why so blue? This “blue print” is an example of the cyanotype process, used throughout the twentieth century to make inexpensive copies of photographs and engineering drawings. Made from a glass plate negative that archaeologist Ernst Herzfeld took during his excavation at Pasargadae, the capital of the ancient Achaemenid Empire, between 1905 and 1928, it shows the mausoleum of Cyrus the Great, who established the site.
Below, another of Herzfeld’s shots captured a rare view inside Cyrus’s tomb, which includes a small wall niche for a lamp. Reportedly, while Cyrus lay mummified in his golden coffin, his clothing was displayed around the chamber and local priests were paid a monthly allowance to stand guard. When the Greeks conquered Achaemenid Iran in 330 BCE, Cyrus’s mausoleum was looted, but the Macedonian conqueror Alexander ordered it to be refurbished in honor of the legendary king.
Making a cyanotype involves coating a piece of paper with chemicals, superimposing the negative on it, and exposing it to sunlight. Fine arts photographers avoided cyanotypes for their intense blue pigments and lack of fine detail. Produced on regular notebook paper, however, cyanotypes proved far more resilient in the rough conditions of an archaeological dig than delicate darkroom prints. Herzfeld’s cyanotypes survived the excavation and are now part of his archives here at the museum. See them in Heart of an Empire: Herzfeld’s Discovery of Pasargadae, now on view.