John Da Costa ( 1867 - 1951 ) was a British painter. John Da Costa s works have been put up for auction numerous times, with realized prices varying from 985.71 USD for Portrait of Emilia Frances, Lady Dilke (1840-1904), half-length, in a grey dress with fur trim in 2005 to 2400 USD for LADY WITH RED OSTRICH FEATHER FAN in 2009 , based on the size and medium of the artwork.