A DERBY ORNOTHOLOGICAL CYLINDRICAL MUG painted in the manner of Richard Dodson with three exotic birds perched on tree-stumps, a woodland landscape in the distance, within a rectangular gilt line cartouche flanked by gilt stylised foliage and beneath a border of gilt foliage suspending flaming lamps, the rim gilt (slight rubbing to gilding on rim and handle), Crown, crossed batons, D and 18 marks in iron-red, Duesbury & Kean, circa 1810