ECKENSTEIN (Oscar) and August LORRIA. The Alpine Portfolio. The Pennine Alps, from the Simplon to the Great St. Bernard. London, publishers, n.d. [1889]. In-folio (400 x 320 mm), set of 101 plates and one text booklet, bound in half-chagrin with corners, percaline boards, spine rebound in cloth, gilt title on first board (publisher's binding). First edition, printed in an edition of 160 copies, of this important collection of alpine photographs by William Donkin (33 views), Vittorio Sella (17 views), Elizabeth Le Blond, Louis Kurz, Jules Beck, Xavier Imfeld, Paul Güssfeldt, James Eccles and Howardt Barret. It includes 100 very fine heliotype plates on strong cardboard, depicting views of the Pennine Alps, as well as a 33-page booklet containing a preface and captions to the illustrations. A printed label on the flyleaf indicates that 160 copies of this collection were printed (no. 57). Ex-libris The Climbers Club. Oscar Johannes Ludwig Eckenstein (Canonbury 1859 - Oving 1921), the son of a German socialist who emigrated to England, was an Austrian mountaineer who made numerous ascents, including the first ascent of the Stecknadelhorn in the Valais Alps on 8 August 1887 with Matthias Zurbriggen and the first ascent of Mont Brouillard in the Mont Blanc massif on 10 July 1906 with Karl Blodig and guide Alexis Brocherel; He also made the first ascent of Popocatepelt and attempted K2 with the controversial Aleister Crowley. Trained as an engineer, he was responsible for many innovations in mountaineering equipment, including 10-point crampons and a short ice axe. Magnificent album of photographs of the Mont-Rose and Mont-Blanc massifs, very rare. Perret, 2690 - ACL p. 194 - CAS p. 412 - CAI p. 43 - Giuseppe Garimoldi, Fotografia e alpinismo, Priuli e Verlucca, 1995 (pp. 85-87)