See John Stanley Clarke, 'Curtis Botanical Magazine and the Derby Botanical Dessert Services', Antique Collecting, November 1983 for a dissertation on the various Derby botanical painters, also Martin C.F. Mortimer, ''Quaker' Pegg's first period?' The Connoisseur, January 1979, pp. 23-27. Cf. a yellow-ground Botanical part dessert-service sold in these Rooms on 9 October 1989, lot 321