c.1936 Edward VIII "O-866 ENGRAVE Steel die of 2c postage stamp"heading on a 262x153mm metal plate with a central image of a proposed 2c Edward VIII issue flanked by stamp-sized image of a similar design (vignette faces right instead of left) and an additional image of the 2c value showing Edward as Prince of Wales from the 1935 Jubilee set, various hand-written notations on plate including "size same as last issue/ 1937 to be hidden", «11/16 x 27/32", and "ENG.", accompanied by a smaller (163x109mm) impression on a thin metal plate with the same heading but different notations including an "approved Sept 12/36" date, very fine and likely unique, showpiece essays