WILLEM DE KOONING (1904-1997) Untitled (Two Works) each: charcoal on paper I: 11 x 8 1/2 in (27.9 x 21.6 cm) II: 11 x 8 3/8 in (27.9 x 21.3 cm) Executed circa 1965 Footnotes: Provenance Dr. Henry Vogel Collection, New York. Sale: Christie's, New York, Willem de Kooning: Works on Paper from the Estate of Dr. Henry Vogel, June 19, 2013, Lots 6 & 29. Acquired from the above by the present owner. For further information on this lot please visit Bonhams.com For further information about this lot please visit the lot listing