A good pair of Vienna cabinet plates bearing date codes for 1822 and 1823

A good pair of Vienna cabinet plates bearing date codes for 1822 and 1823, each painted with an oval cartouche of a Classical scene within rich gilded borders and panels of grisaille putti on a purple ground, one depicting Agamemnon's sacrifice of Iphigenia, the other with a scene of Pygmalion before the living statue of Venus, blue shield marks and impressed numbers, 24.5cm. (2) Provenance: from the collection of Lady Mishcon. Presented as a wedding gift in 1949.