In The Last Novel, David Markson offers the following citations re: Picasso, Stein, Man Ray (citations not in Markson’s (anti-)order):
Gertrude Stein once delighted Picasso by reporting that a collector had been dumbfounded, years afterward, to hear that Picasso had given her her portrait as a gift, rather than asking payment.
Not understanding that that early in Picasso’s career, the difference had been next to negligible.
Among the many paintings in her Paris flat, Gertrude Stein had two exceptional Picassos.
If there were a fire, and I could save only one picture, it would be those two. Unquote.
Picasso. Cézanne. Matisse. Braque. Bonnard. Renoir.
All of whom painted portraits of Ambroise Vollard.
Cartier-Bresson. Brassaï. Man Ray. Lee Miller. Robert Doisneau. Robert Capa. David Douglas Duncan. Cecil Beaton.
All of whom photographed Picasso.