A rare Martin Brothers stoneware miniature bird by Robert Wallace Martin

A rare Martin Brothers stoneware miniature bird by Robert Wallace Martin, dated 1913, modelled casting an up a sideways glance, in shades of blue and brown, on ebonised wood base incised R W Martin & Bros Southall 6.13 8cm. high Malcolm Haslam The Martin Brothers Potters, page 112 fig XVI and also on the front cover a similar bird illustrated