A tortoiseshell and needlework dressing table mirror

A tortoiseshell and needlework dressing table mirror, by Lady Margaret E B Campbell, with a central shaped bevelled plate and floral and wirework borders set cabouchons to a silk ground, within a moulded frame, the easel back with a printed label 'E.Dreyfous, 99 Mount St., W, By Special Appointment to H.R.H The Princess of Wales, Original Novelties for Wedding and other Presents, Antiquities.' 29.75 x 21in (75.5 x 53cm). Edouard Henry Dreyfous, based in London and with an outlet in New York sold antiques and objets d'art, his patrons included Queen Alexandra and Queen Mary.