Cyanotype is a photographic printing process that produces a cyan-blue print. Engineers used the process well into the 20th century as a simple and low-cost process to produce copies of drawings, referred to as blueprints. The process uses two chemicals: ferric ammonium citrate and potassium ferricyanide. The English scientist and astronomer Sir John Herschel discovered the procedure in 1842, mainly a means of reproducing notes and diagrams, as in blueprints. It wasn't until the early 1900's that it was used as an artistic format for photographic prints.
The below prints have been making their rounds in local gallery shows. Those which have not sold at gallery will soon be placed for sale in my Etsy shop HERE.
Click the below thumbnails to enlarge.