▁ ▁M aking ▁up ▁well ▁over ▁ 9 0 % ▁of ▁the ▁museum ' s ▁works , ▁g ifts ▁from ▁several ▁major ▁private ▁collect ors ▁form ▁the ▁corner st ones ▁of ▁MO CA ' s ▁permanent ▁collection ▁of ▁nearly ▁ 6 , 0 0 0 ▁works . ▁Much ▁of ▁it ▁has ▁come ▁from ▁board ▁members ▁who ▁don ated ▁or ▁be que athed ▁key ▁works ▁or ▁entire ▁collections , ▁or ▁sold ▁art ▁to ▁the ▁museum ▁at ▁highly ▁favor able ▁terms . ▁ ▁Within ▁months ▁of ▁its ▁fall ▁ 1 9 8 3 ▁opening , ▁MO CA ▁was ▁able ▁to ▁turn ▁itself ▁into ▁an ▁instant ▁player ▁in ▁the ▁international ▁art ▁world ▁by ▁striking ▁a ▁deal ▁with ▁one ▁of ▁its ▁board ▁members , ▁Giuseppe ▁Pan za , ▁who ▁agreed ▁to ▁sell ▁a ▁group ▁of ▁works ▁for ▁$ 1 1 ▁million ▁and ▁st agger ▁the ▁pay ments ▁over ▁five ▁years , ▁interest - free . ▁The ▁ 1 9 8 4 ▁purchase ▁of ▁parts ▁of ▁the ▁Pan za ▁Collection ▁en comp ass es ▁ 8 0 ▁sem inal ▁works ▁of ▁abstract ▁expression ism ▁and ▁pop ▁art ▁by ▁Jean ▁F aut rier , ▁Franz ▁K line , ▁Roy ▁L ichten stein , ▁Cla es ▁Old enburg , ▁Robert ▁R aus chen berg , ▁Mark ▁Roth ko , ▁and ▁Anton i ▁T à p ies . ▁In ▁ 1 9 8 5 , ▁the ▁museum ▁accepted ▁Michael ▁He izer ' s ▁earth work ▁Double ▁Neg ative ▁in ▁Nev ada ▁desert , ▁don ated ▁by ▁Virginia ▁D wan . ▁A