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Inscription

on verso, lower right typewritten in ink on an attached label: Robert Smithson Spiral Jetty April 1970 vesicular black basalt, salt crystals, earth, red water (algae) coil 1500' long and approx 15' wide Great Salt Lake, Utah installation view; lower center hand-written in graphite: 82% p. 17 [inside a circle hand-drawn in graphite]; upper right along edge hand-written in graphite: 104759 104665; upper center on attached sticker: Dwan 29 West 57 New York 10009; on same sticker stamped in blue ink: please credit photograph to John Weber Gallery; typewritten in black ink: Robert Smithson Spiral Jetty April 1970 coil 1500' long and approx 15' wide Great Salt Lake, Utah black rock* [crossed out in graphite], salt crystals, earth, red water (algae) photo credit: Gianfranco Gorgoni; hand-written in blue ink: *vesicular black basalt; center on an attached sticker hand-written in blue or black ink: La Jolla Dub Dep...[?]

Provenance

Eileen and Michael Cohen, New York; gift to NGA, 2011.