SOLD William L'Engle (1884-1957) Large Graphite Sketch of Martha Graham Dancer, c. 1930It's not all that often I purchase works by known artists, especially from the "fine arts" world, but today a few, for me embodying the beauty of a sensitive, confident, gestural line. This, as with the drawings of cats by C. Bertram Hartman, I purchased from a dealer in Cambridge, MA, and this one, though unsigned, I know is by William L'Engle (American, 1884 1957), c. 1930, its subject a Martha Graham dancer. (Timely, as the Martha Graham company is