Print on Paper From a limited edition of 10 Size : 29.7 x 42cm (unframed) / 29.7 x 42cm (actual image size) Signed and numbered on the back Style : Illustrative Subject : Animals and birds Cyanotype is a photographic printing process that produces a cyan-blue print. Engineers used the process well into the 20th century as a simple process to produce copies of drawings, referred to as blueprints. The process uses two chemicals: ferric ammonium citrate and potassium ferricyanide. It is a completely manual process and is revealed with sunlight. Important:Each copy is unique, texture and color may vary. Each photograph is taken on 250 gr paper. Fabriano