Gum Bichromate Printing: Untitled 4 from “White Rabbit” series gumbichromatejournal 7 years ago Time lapse of Tri-Color Gum Bichromate print over Cyanotype with CMY negatives made using Epson SureColor P800 printer. Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook