special "Sunday B Morning" version (ca 1970) of the "Flowers" screenprint on which Andy Warhol wrote "This is not by me. Andy Warhol" with typical stamp on the back and "Fill in your own signature" on the back also a stamp of George Mulder prov : from the collection of George Mulder WARHOL ANDY (1930 - 1987) speciale versie van de "Sunday B Morning" serie van ca 1970 : een screenprint "Flowers" waarop door Andy Warhol is geschreven "This is not by me. Andy Warhol" - 90 x 90 met op verso de typische stempel en tekst "Fill in your own signature" & een stempel van George Mulder prov : collectie van George Mulder lit. : Freyda Feldman, Jörg Schellmann, Claudia Defendi, Andy Warhol Prints, A Catalogue Raisonné 1962 - 1987, New York 2015, II.22-31, p. 213 :"There are some unauthorized prints which were published in 1970 in different colors from the portfolio. Stamped in black