30c Burgoyne, Large Die Essays (121-E1i to 121-E1k).
Nine, from 36 x 25mm to 50 x 47mm, range of papers and colors, each identified by Finkelburg, incl. some not listed in Scott such as Red Brown on White Cloudy Bond, Blue on Thick Wove, Orange on Yellowish Clear Bond, Blue on Card (horizontal fold), few small faults
FINE-VERY FINE. A RARE AND INTERESTING GROUP OF THE BURGOYNE ESSAYS ON VARIOUS EXPERIMENTAL PAPERS.
Probably an impossible group to duplicate