Jean Tinguely # DRAWING by META MATIC no. 10 # 2010, mint
Josef Albers Museum # ANNI ALBERS photo, Change of Address # card, mint
Josef Albers Museum # PATRICK FAIGENBAUM # invitation, 2021, mint
Josef Albers Museum #JOHN SZARKOWSKI # 2009, mint
Josef albers Museum, Quadrat Bottrop # JERRY ZENIUK # signed, 2016, mint
Josel Albers Museum/ Quadrat Bottrop # original silkscreened print WALTER LEBLANC # 1989, mint-
Kwadraat, Steendrukkerij de Jong # PIM VAN BOXSEL, Philomene # 1966, nm-
Quadrat Bottrop # NICHOLAS NIXON # 2004, mint
Quadrat Bottrop , Josef Albers Museum # ANTON STANKOWSKI # poster, 2006, mint
Quadrat Bottrop, Josef Albers Museum # ULRICH ERBEN # 2019, poster, mint
Quadrdat Bottrop, Josef Albers Museum # HANS STEINBRENNER # 1986, mint-