New York City Ballet

Suzanne Farrell and Peter Martins of the New York City Ballet perform together in ''Ballerinas: Dances by Peter Martins,'' which was aired on PBS television as part of the Great Performances Dance in America series.

Merrill Ashley, of the New York City Ballet, performs a graceful leap in George Balanchine's ballet ''Ballo della Regina.''

Photographs Mikhail Barythnikov, a principal dancer with the New York City Ballet.

Photographs of Anthony Blum, a dancer with the New York City Ballet, performing on stage.

Photographs of Jean-Pierre Bonnefous, principal dancer with the New York City Ballet, performing on stage.

This box contains programs for The New York CIty Ballet and its predecessor companies; The American Ballet (1935), Ballet Caravan (1937-1938), Ballet Society (1946-1948), and New York City Ballet (1951-1979).

This box contains programs and mailers from The New York City Ballet from 1980 to 2004.

Edward Villella of the New York City Ballet performs with an unidentified partner in George Balanchine's ''Bugaku.''

Choreographer George Balanchine (center) works with his principal dancers Patricia McBride and Mikhail Barishnikov as they prepare to dance in ''Choreography by Balanchine, Part 3.''

2 photographs on one sheet: (left) portrait of renowned choreographer Jerome Robbins. (right) Joseph Duell, Kipling Houston and Jean-Pierre Frohlich perform in Robbins' ''Fancy Free'' as part of the Great Performances Dance in America special ''choreography by Jerome Robbins with the New York City Ballet.''