Explanation: Websiite 'rkd.nl' stated in the photo that the image was last spotted at the above location, date unknown. The painting largely corresponds to the eponymous paintings by Dr. Von Frey in Lucerne (Luzern - same seam; background different), at the Czuczka collection in Geneva, the National Museum in Warsaw, the (auction house) Palais Galliéra in Paris and an unknown private collection in Cologne