More than 400 works from MoMA's photography department will be sold at Christie's over the next nine months. Christie’s will preview highlights of the MoMA collection during multi-city tours in San Francisco, Los Angeles, and New York beginning in September. The cache is expected to realize more than $3.6 million, and the proceeds will go toward the department’s acquisition fund. The photographs are by some of the best-known names from the early 20th century to the postwar pe