At: Pundole’s Auction House, Ballard Estate, Mumbai; On: 2nd February, 2018 Cyanotype printing was developed around the same time as its albumen counterpart in the early 1800s, but it used salts of iron to produce blue-coloured prints on a white background. It was widely used in mapping architectural projects and biological documentations and inspired the coining … Continue reading 19th-Century Photography: Cyanotypes