Ulrich Wüst #SPATER SOMMER/ LETZTER HERBST # 2016, mint-
UMC Utrecht collectie # UMC KUNST # 2005
Uncle Scrooge McDuck# COLORING BOOK # 1962, nm+
underwear in the UK # INSIDE OUT # 2000, British Council, nm
Unipart # PATRICK LICHFIELD # 1982, nm
Unipart # PATRICK LICHFIELD, creating # 1983, nm-
Unipart # PATRICK LICHFIELD, creating # 1985, nm
Universe # RANKIN, Maler ±NUdes # 2001, nm
Universidad Salamanca # RAUL CORDERO 1996-2002 # 2002, nm
Universita di parma # ANDRE MASSON # 1981, nm
Universitat Giessen # MICHAEL POST, Objekte # 1992, signed, mint
Universiteit Tilburg # MARTIEN COPPENS # 2006, nm++
University Gallery Leeds # JOHN MITCHELL # 1980, nm+
University Museum of Berkeley # JOAN BROWN # 1974, nm+
Unseen # FLOORPLAN # 2015, mint
Unseen Kana Kawanishi gallery # HIDEO ANZE, FUJISAKI, OKABE # invitation, 2015, mint-
unstcentrum Badhuis, Lohse, Bill ao # SCHWEIZER KONKRETE # 1977, mint-
Urbane Interventionen, Sao Paolo / Berlin # BRASMITTE # 1997. nm
Ursula Neubauer # SPOREN # 1996, ed. 600, signed, mint
Ute Behrend # GIRLS, Some Boys and other Cookies # Scalo, 1996, mint