The Great age of fresco: Giotto to Pontormo

"The Great Age of Fresco: Giotto to Pontormo," which was on view for only two months in the fall of 1968, was the first exhibition at the Museum to have corporate sponsorship. Olivetti’s underwriting of the exhibition was seen as a model for the pursuit of corporate sponsors for the Centennial exhibitions being planned at that time. -- Excerpt from Wikipedia article "The Metropolitan Museum of Art Centennial"