Ignacy Jozef Protasewicz, Seascape, c. 1900, oil on canvas mounted on cardboard, National Museum in Warsaw, Poland
Cloudscapes by two unfamiliar artists (at least to me)—Polish painter Ignacy Jozef Protasewicz (1876-1917) and American Henry Lyman Sayen (1875-1918) who also was an inventor working with x-ray tubes.
Henry Lyman Sayen, Rooftops and Clouds, Paris, 1910-1912, oil on canvas, Smithsonian American Art Museum, Washington, D.C.
