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Collectors Committee, 1969
Collectors Committee, 1999
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Collectors Committee, 1984
Collectors Committee, 1968
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Ed Ruscha, 1965
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![Eco del reloj [Clock Echo]](https://api.nga.gov/iiif/090d9aa1-ca72-4c49-8202-a0919ef133f2/full/843,/0/default.jpg)
