essay Set of eleven contemporary photographic essays (no 6d. value), each having a colour wash applied to the frame in colours close to those issued, taken on various size pieces of photographic paper illustrating how the essays were pinned to boards, etc. prior to being photographed, and accompanied by three original photographs signed by Roberts and used for the vignettes of the 1½d., 1/- and 2/6d. values. Also some modern photographs of the same essays. Photo