http://www.artnet.com/artists/heinrich-sperling/past-auction-results


Heinrich Sperling (1844-1924)-Attrib. "Two scenes with dogs and cats", oil on palette, late 19th c.
http://www.wilnitsky.com/scripts/redgallery1.dll/details?No=28579


Heinrich Sperling (1844-1924)-Attrib. "Two scenes with dogs and cats", oil on palette, late 19th c.
http://www.wilnitsky.com/scripts/redgallery1.dll/details?No=28579