5 x 7.5 inch B&W ad from an art magazine in early 1972 announcing a February Cornell showing. Stone, who died in 2006, was a groundbreaking advocate for the 60s abstract expressionists and pop artists of that time.
From the gallery's current web site:
The Allan Stone Gallery opened in 1960 showing works by Willem de Kooning, Cesar, Joseph Cornell, Barnett Newman, and a host of then-emerging artists like Andy Warhol, Wayne Thiebaud, Richard Estes, Robert Ryman, Eva Hesse, and John Chamberlain. The gallery continues to show contemporary, mid-career, and emerging artists while maintaining a tradition of expertise in the New York School of Abstract Expressionism. Allan Stone is a leading authority on Willem de Kooning, Arshile Gorky, Franz Kline, Joseph Cornell and John Graham. The gallery's broad aesthetic program ranges from representation to abstraction, in painting, sculpture, and works on paper.And a link to tone's NYT obit: