Dated 1961 and 1964, and signed Zhang Shibao (1909-1987) and Zhang Jingshou (b. 1920) respectively Each thickly potted in a shallow form, standing on a tall circular foot, enamelled to the centre with sparrows on rockwork, among wisteria and peonies respectively, below a black hatched pattern border to the rim. The largest: 23.5cm (9 1/4in) diam. (2).