A Battersea enamel plaque 2nd half 18th century

A Battersea enamel plaque 2nd half 18th century, printed in purple monochrome with Venus and Triton, the goddess surprised by Triton emerging from the waves, in a gilt metal frame, 11.3cm overall. Provenance: Sotheby's, 1st February 1965, lot 238. From the collection of the Hon. Mrs H. Ionides.