An unusual pearlware square plaque c.1810-20

An unusual pearlware square plaque c.1810-20, painted with a central roundel of two figures fishing before a thatched house, within vignettes of exotic birds and colourful butterflies in the English porcelain tradition, on a pale green ground, 28.5cm. It is possible that this plaque was used as a test piece for porcelain decoration.