Michael Wetzel (American, b. 1966) Ariadne , 1999 Unsigned, defaced portrait composition to verso, identified on a label from the Obelisk Gallery, Boston, affixed to the backing. Oil on copper, 18 x 24 in. (45.7 x 60.8 cm), framed. Condition: Good. Provenance: From the estate of Joan Sonnabend, Boston, Massachusetts.