The decoration was perhaps executed in the atelier of James Giles.
Cf. the example sold in these Rooms on 6 June 1988, lot 133 and for other wares painted in a similar manner with a tentative attribution to the Giles' atelier see Simon Spero, Worcester Porcelain, The Klepser Collection, p. 144, no. 166; also see Franklin A. Barrett, op. cit., pl. 31A for a teapot and cover and the example from the Rous Lench Collection sold in these Rooms on 30 May 1990, lot 480