FOUR LATE 19TH CENTURY CONTINENTAL PAINTINGS. Four likely preparatory studies of oil on board. Two artworks can be attributed to Adolf Kaufmann (Austrian, 1848 - 1916) as they have the verso stamp: "Nachlassauktion / Adolf Kaufmann / Wien, Dorotheum " and - the drawing of autum trees - have his signature lower right hand. Unframed. - Largest drawing is 8 x 12 inches. Estimate $350-450
