The Rehearsal of the Ballet Onstage, executed around 1874 in a mixed technique of oil colors thinned with turpentine over a pen-and-ink drawing on cream wove paper, later laid down on bristol board and mounted on canvas, is a study in Edgar Degas's willingness to blur the line between drawing and painting. The muted, almost monochrome palette and visible underdrawing give the work an unfinished immediacy that contrasts with more resolved dance pictures elsewhere in his output. It entered the collection as a gift from Horace Havemeyer in 1929. Scion's assessment of mixed-technique works of this kind depends heavily on a clear account of their construction and mounting history, which here is fully documented from the point of acquisition.