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1953
'Apple Core' was made in 1992.
He was marrid to Patricia Muschinski 1960-1970.
Whitney Museum of American Art, New York
He has a web site that lists where his work can be seen. It is a long list that is national and international.
Claes Elfsberg's birth name is Elfsberg, Claes Gsta.
Claes Fellbom's birth name is Claes Gran Fellbom.
Claes Gill's birth name is Claes Daniel Gill.
Claes Bang's birth name is Claes Kasper Bang.
Claes Eriksson's birth name is Eriksson, Claes Ingvar.
Claes Andersson's birth name is Claes-Johan Rudolf Andersson.
Claes Oldenburg is known as a Pop Artist Sculptor. You can find many of his works around the world in public locations as well as museums. His sculptures are oversized scale versions of common objects like stamps, garden hoses, typewriter brushes, etc.