A rare Imperial Beijing-enamel 'European subject' box and cover

A rare Imperial Beijing-enamel 'European subject' box and cover
Blue-enamelled Qianlong four-character mark and of the period
Exquisitely enamelled in delicate and vivid tones with a central medallion enclosing a scene of mother and children, featuring a Western lady breastfeeding a baby while the other child leaning towards her back, surrounded by a leafy floral border on a bright yellow ground encircling interlinking Rococo-style leafy scrolls on the sloping sides of the box and cover, the interior enamelled in turquoise. 5.8cm (2 1/4in) diam. (2).