columns. installation. 1997columns installation, installations, the crystal stopper exhibition, wallpapers the crystal stopper. lehmann maupin gallery. ny. 22 march-19 april 1997. invitationcolumns installation, invitations, publications, the crystal stopper exhibition the crystal stopper exhibition at lehmann maupin gallery. ny. 22 march-19 april 1997columns installation, exhibitions, past exhibitions, the crystal stopper exhibition