A Letter to Philip Hofer on Certain Problems connected with the Mechanical Cutting of Punches. A facsimile reproduction with an introduction and commentary by John Dreyfus. 8vo, 102pp., Department of Printing and Graphic Arts, Harvard College Library [&] David R. Godine, Boston, 1972.
One of 2000 copies printed by Enschede in 'Spectrum' on specially made pale blue paper. Facsimile MS and other illustrations within the text. Parchment-backed spine titled in gilt, maroon paper sides blocked in gilt. Printed paper dust-jacket. A fine copy with a loosely inserted compliments slip.