CUNNINGHAM, C. D. & W. de W. ABNEY. The Pioneers of the Alps, London: Sampson Low, Marston, Searle and Rivington, 1887, large 4°, number 26 of 50 copies on LARGE PAPER signed by Cunningham, photogravure portraits, plates and illustrations on India paper, mounted (occasional spotting), original maroon cloth (unevenly faded, inner hinges weak, extremities bumped and chipped).