I suppose it depends on the definition of
"major", "museum" and
"depends". But I recall IBM exhibits at Chicago's Museum of Science
and Industry at about the same time that Hammond had a major exhibit
extolling their tonewheel technology for organs. That would be what,
late 1950's, early 60's? I recall a cutaway of a 305 RAMAC as being
part of the exhibit as well as some cool relay-operated pushbutton
exhibits.
Well, displaying a RAMAC when RAMACs were still in service is sort of
a big advertisement - not a whole lot of history.
"Answer" in a few hours.
--
Will