The Francis Frost Gallery currently has three works for sale (update: two are now sold so only one remains) by Op Artist Bill Komodore (1932-2012).
Bill Komodore was one of the ‘first generation’ of Op Artists producing a lot of his work (including these) in the 1960s.
His painting “Vermont” was featured in the MoMA’s 1965 “The Responsive Eye” exhibition. “Gondisapur” (below but sold already) was also loaned to the Museum of Modern Art, and was included in the travelling exhibion of “The Responsive Eye” which toured the USA in 1965 and 1966.
If you want to own a piece of history and have a few thousand dollars to spare, I would suggest you get in touch with Francis at the Francis Frost gallery.