Double Swimmer is an hand made cyanotype print on Winsor&Newton smooth surface 150gr. paper. Cyanotype is an old photographic printing process invented in 1842. This is an hand pulled print done preparing paper with Ammonium Iron Citrate and Potassium Ferricyanide chemicals, then exposing paper with a contact negative (10x12 cm) to direct sunlight for sometime. Every print is always different in tone and surface, so it's like a unique piece. This is a contact double 10x12 negative print.