Catalog/Wolf Kahn/Green Trees and Gray SkyGreen Trees and Gray SkyArtistWolf Kahn$500 Buy Wolf Kahn (American/German, b. 1927) Green Trees and Gray Sky signed 'W Kahn' (lower center) pastel on paper 10 ½ x 13 ½ in. (26.7 x 34.3 cm.)Sizes and ProportionsExecution Options (Materials and Printing)Additional Finishing