In the painting/collage entitled "Just What Is It That Makes Today's 
Homes So Different, So Appealing?" by artist Richard Hamilton (20th 
Century, British), in the upper right hand corner of the image is what 
seems to be an oil painting in minature.  It is a portrait in black 
and white, of a man, and is set in a frame.  I would like to confirm 
1) who the man in the painting is.  Hopefully that can be discovered 
if there is a list of the clippings that Hamilton used for the 
collage.  Otherwise, there could be in Hamilton's writings about the 
painting or criticism a hint at who people guessed it to be.  Also, 2) 
it would be especially astounding if it could be traced to a specific 
painting!  That would be quite an achievement.  Many thanks!