[Halftone and collotype in Photo-engraving, photo-etching, and photo-lithography in line and half-tone]. Frontispiece.: From ...
Edward L. Wilson[Halftone and collotype in Photo-engraving, photo-etching, and photo-lithography in line and half-tone]. Frontispiece.: From the heights of Lugano. Accompanying Wilson's Photographic Magazine / three-color negatives by R.D. Gray, New York ; engraved and printed by Photo Colortype Co., Chicago. Three-color Halftone. 22 x 15 cm.