In her own words...
In 1965 I began again working with lithography near my home in the south of France. This “Reclining Nude” is obviously made from the lithographic standpoint: a different plate for each color. By this time one no longer worked on stones but on metal plaques or treated papers. These could be drawn and painted on (always in black) in your own studio. The era of stones was bygone, although some artists still used the stone for its textural graininess.
–from Dorothea Tanning: Hail Delirium! A Catalogue Raisonné of the Artist’s Illustrated Books and Prints, 1942-1991, New York: The New York Public Library, 1992, p. 94.