In 1967, Andy Warhol made a portfolio of 10 screen print portraits of Marilyn Monroe from the publicity photo for the 1953 film "Niagara." The portfolios of the 10 screen prints were printed in an original edition of 250. All prints from the original edition of the 250 were signed in pencil and numbered with a rubber stamp on verso, some signed in pen, some initialled on verso, some dated. Apart from this edition, 26 complete sets of the artist with evidence printed, signed and letters AZ on verso. The first edition of the Marilyn and Flowers series were very successful and many hoped the artist would print yet another edition. In the 1970s Warhol worked with German and Belgian printers for his European exhibitions. They presented an edition of the Marilyn's and Flower's for the European market. However, Warhol was not interested and refused to help with a European edition. The original plates were brought to Europe and the first unauthorized prints were produced in slightly different colours than the original series. These 1st emphasis of 250 unauthorized prints were stamped in black on verso, "Published by Sunday B. Morning" and " Enter your own signature". Andy Warhol described some prints with the text, "This is not by me", and was well aware of the European editions and began to accept them as they were printed and issued by two of his close friends. Due to the popularity of the first unauthorized edition, the name 'Sunday B. Morning' continued to publish the screen prints from the original plates. The following editions are published in the original colours, not numbered, and stamped in blue ink to clearly mark the difference with the first edition. The latest (4th, 5th, ... edition) are "printed" with modern techniques and are all stamped with blue ink. The series 'Sunday B. Morning' screen prints offered in this lot are from the 80s and are printed on museum boards with the highest quality archivist ink. They are of the same quality as the original of Andy Warhol. The screen prints are described in the Andy Warhol Print Catalogue Raisonne and are real collectibles.