In 1974 Mandel and Alison Woolpert, traveled across America, making portraits in the style of baseball cards of 134 photographers and curators. These included Ansel Adams, Imogen Cunningham, Harry Callahan, Minor White, Aaron Siskind, William Eggleston, Ed Ruscha, and John Szarkowski. They also collected personal statistics and comments. Mandel then created a set of baseball cards and sold them through museums and galleries, in packs of 10, at a dollar a pack.
