Depth Charge Susan Collis, Depth Charge, 20130.9mm HB pencil leads, framed33 x 33 cmDetail of: Susan Collis, Depth Charge, 20130.9mm HB pencil leads, framed33 x 33 cmDetail of: Susan Collis, Depth Charge, 20130.9mm HB pencil leads, framed33 x 33 cm