An antique photographic process distinctive for producing Prussian blue monochromatic prints. Developed
in the mid-19th century, cyanotype was quickly embraced as an inexpensive method for reproducing
photographs, documents, maps and plans (hence the enduring architectural term "blueprint").

Famously, it was also used by Ana Atkins and other field biologists for indexing plant specimens. The first
photograms ever made! Cyanotype is a remarkably simple process that employs two inexpensive chemicals
and sunlight/UV. Prints can be made on any natural fiber: paper, cotton, silk, wool, wood, etc.