operator: Web Gallery of Art described at URL: https://www.wga.hu/html/r/rembran/painting/z_other/rider.html determination method or standard: SHA-1...
File:Rembrandt - The Polish Rider - WGA19251.jpg Version from www.wga.hu...
File:Rembrandt_-_The_Polish_Rider_-_WGA19251.jpg Version from www.wga.hu...