HELBRONNER (Paul). Detailed geometrical description of the French Alps. Volume two: Massifs du Chablais et du Faucigny. Paris, Gauthier-Villars & Cie, 1930. Fort in-folio, full publisher's cloth binding, decorated with cold fillets on the boards, gilt title on the spine, uncut, untrimmed. First edition of the second volume only, without the portfolio of large colour panoramas. Nevertheless, this is one of the most interesting volumes, including the Mont Blanc massif. Illustrated with 4 large fold-out maps and 26 fold-out black and white panoramas. A good, complete copy. Perret, n°2214