WELDEN, Ludwig Freiherrn von. Der Monte-Rosa, Vienna: Carl Gerold, 1824, 8°, FIRST EDITION (occasional spotting to text), 6 folding engraved plates, 5 with views of mountain peaks, folding aquatint map (minor marginal dampstaining), original printed wrappers -- Christian ENGELHARDT. Das Monte-Rosa und Matterhorn, Paris & Strassburg: Treuttel & Würss, 1852, 8° (light browning), tinted lithographed frontispiece (some offsetting from title), contemporary morocco-backed cloth. (2)