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Inscription

lower left in graphite by unknown hand: #17/1 / MIX C / BLK+CHAB CONC. / BLUE / YELLOW / RED BLK CHARB.CON [circular arrow]; lower right in graphite: OK SL[circled] / C. 30 x 17 #1 4" PAPER; lower right verso in graphite by unknown hand: LeWitt: Color & Black, 30 x 17 #1 OKTP

Provenance

Kathan Brown, San Francisco; gift to NGA, 2011