The seventh grade: most extreme climbing
$50 · Offered by Rulon-Miller Books
New York: Oxford University Press, 1974 . First American edition, 8vo, pp. 160; double-page map, 3 color plates and 26 black & white illustrations from photographs, mostly full-page; a fine copy in a fine, price-clipped dust jacket. The seventh grade refers to the extreme degree of difficulty in mountain climbing. Neate 1978 516. Item #68573
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