ERNST RECHEL (German 19th century) A PAIR OF DRAWINGS, "Auf Rusland Eis/On Russia's Ice" and "Das Schwierige Musikstuck/The Difficult Piece of Music," 1875-1877, in the French School taste, charcoal and chalk on paper, each titled, signed and dated, one bearing a paper label "M.B. Mullen Art and Gift Shop, Philadelphia, PA," 30 1/2" x 25 1/2"