The Origin of the Split Button: Separating Fact From Fiction | Frankly Penn
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Claes Oldenburg Captured a Carefree (and Consumerist) America - The New York Times
Claes Oldenburg 'Split Button', Philadelphia, Pennsylvania. 1981 at the University of Pennsylvania opposite a sculpture of… | Philadelphia art, Art base, Street art
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Philadelphia's Open-Air Art
Association for Public Art - For #NationalButtonDay, we give you this interesting fact about the "Split Button" on the University of Pennsylvania's campus: The artists, Claes Oldenburg and his wife, Coosje van