RMS autographed these black-and-white photos of himself holding the neck-up portion of a gnu costume. A great gift for a free software devotee. 8.5x11'' Carbon ink print on acid-free matte archival paper. Kodak Tri-X 400 medium format film, Mamiya RZ67 110mm f2.8 W, 1/30s f2.8 Printed and signed by the author in small numbered series, the image is sized for a standard 8x10 frame.