US Copyright Office
Art of Collage
Kolaj Magazine
Society of Layerists in Multi Media
Paris Collage Collective
Brooklyn Collage Collective
Edinburgh Collage Collective
National Collage Society
Fred Thomaselli
Anne Ryan
Max Ernst
Kurt Schwitters
Joseph Cornell
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Henri Matisse
Romare Bearden
Hannah Hoch
Hannelore Baron
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Robert Rauschenberg
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