Click on any image to enlarge. From Left to Right: 
Chicago's Fairweather-Hardin Gallery announcement, 1955. (These 31 paintings had been shown earlier the same year at the artist's one-man show at the Wildenstein Galleries in Paris, part of the prize Ms. Hoff received as winner of the Magnificent Mile Art Festival, 1955. Because of French customs regulations at the time, none of the paintings were allowed to be sold in France.)
Princess Grace attends the Monaco exhibit of ART: USA: NOW, a group exhibition which traveled throughout the world from 1962-1966. (Note: Scroll to the bottom of the page to find out more about the ART: USA tour.)
Banfer Gallery (NYC) announcement, 1966
Betty Parsons Gallery (NYC) announcement, 1981; the painting, "Disco," is in the collection of the Metropolitan Museum of Art
Baruch College, 1994
Corbett vs. Dempsey (Chicago) announcement, 2009