horizontaldrawing:a cyanotype of the tonal spectrum, made circa 1880 by eugène dumoulin
horizontaldrawing:a cyanotype of the tonal spectrum, made circa 1880 by eugène dumoulin -- source link
Tumblr Blog : horizontaldrawing.tumblr.com
horizontaldrawing:a cyanotype of the tonal spectrum, made circa 1880 by eugène dumoulin -- source link
Tumblr Blog : horizontaldrawing.tumblr.com