73. Joseph Oppenheimer (Würzburg 1876-1966 Montreal) Portrait of Johanna Jaffe in a White Dress signed and dated 'J Oppenheimer 1907' (lower left), signed and inscribed on verso oil on canvas signed and dated 'J Oppenheimer 1907' (lower left), signed and inscribed on the reverse oil on canvas 150.5 x 90cm (59 1/4 x 35 7/16in).