Conversation so far:
What type of museum did peggy plan to open?
A museum for contemporary arts was exactly the institution she could see herself supporting.
Was she successful in her plans?
The main aim of this foundation had been to collect and to further the production of abstract art.
When did the foundation start?
two years earlier.
Was there anything of note that came from the foundation?
The main aim of this foundation had been to collect and to further the production of abstract art, resulting in the opening of the Museum of Non-objective Painting.

Question: How large was the collection of abstract art?
Self-contained rewrite: How large was the collection of abstract art at Guggenheim?