Fine oil portrait of a lady in eastern dress

A fine oil on canvas portrait of a lady in eastern dress. The work is beautifully observed with the sitter in long flowing robes, probably Turkish in inspiration and wearing a turban that trails down her side. There is a wonderfully painted peacock feather fan and the whole is set in a colonnaded garden. The idea of this sort of fanciful dress was really a Regency period invention though this work dates to slightly later. The work appears unsigned though this is not unusual for this period portraiture. The painting is in very good untouched condition, there is some varnish discolouration in the sky and areas of craquelure, which is all in keeping with a work of this age. The canvas is prepared by Charles Roberson and gives an accurate date for the piece around 1850. The frame with oval aperture is the original and of a high quality, it has had some restoration and overpaint but all some time ago. The whole has a great period look with an interesting subject in unusual dress. C.1850.
Overall sizes in inches including frame: 23 ¾ by 27 ¾