When I went to the Hammer Museum in L.A. I saw a painting called " Portrait of a man holding a black hat " by Rembrandt it blew me away, I fell in love with the eyes. When I got home I tried to get info on it through the internet but none exists that I can find . I've called all the museums in the area to no avail. Is it common to have a master's painting at a museum that one can't find a picture of or any info on ?? Please help me find this picture........