William E. Dassonville: Yosemite Valley and Half Dome. c. 1905, Vintage platiunum print, signed in ink lower left, 7.5 x 9.5 in. (191 x 241 mm), on original double paper mount., Provenance: William Bowers Bourn, founder of Graystone Cellars in Napa Valley, in 1894, and P.G.&E. Co; built the country estate Filoli in Woodside in 1915. w1734j.

William E. Dassonville: Sky, Owens Valley. c. 1930's, Vintage silver print on "Charcoal Black" paper, 8 x 10 in. (203 x 254 mm), unmounted., Estate stamp on reverse. Illustrated: Dassonville, Palmquist, 1999, plate 46. r1002c.