4” x 5 ½” black and white glossy photograph pasted on 8 ½” x 11”

4” x 5 ½” black and white glossy photograph pasted on 8 ½” x 11” sheet of paper (WJE written upper and lower left corners), (typed caption) Val Tschiel Bridge, Canton Grisons, Switzerland. 1925-26, Robert Maillart, engineer. Stiffened slab-arch of 142-foot span. Here for the first time Maillart used his extremely thin barrel vault, stiffened by the deep rigid girder formed by parapets and road-slab. The semicircular openings along the parapet and the incongruous masonry abutments were stipulated by the Grisons officials.