Coloured lantern slide of a view across the Rosenlaui alpine valley with the mountains Wellhorn and Wetterhorn in the background. The Wetterhorn (3,692 m), was first climbed in 1844, by Stanhope T. Speer. The 1854 ascent by Alfred Wills and party is more celebrated and is generally regarded to have marked the beginning of the 'golden age of alpinism'.. Slide number 27 of Box 181 entitled 'Swiss No.1'.