AN ENGLISH BLACK JAPANNED VASE SHAPED COLZA WALL LAMP

AN ENGLISH BLACK JAPANNED VASE SHAPED COLZA WALL LAMP, C1840 the hemispherical vase shaped box with domed detachable cover with attached with reservoir and acorn finial, the straight brass feeder branch attached to the perforated burner cylinder, the backplate retaining the wall hook, 26cm h, backplate stamped VR/BA similar example at Chatsworth, Derbyshire is illustrated Country House Lighting 1660-1890, Temple Newsam Country House Studies No 4, No 58.