Set 4 cups and saucers Minton Amherst 824

Minton set model amherst n824 consisting of 4 cups and under cups. Japanese décor. Circa 1840. Signed "amherst japan n824" under the bottom of each piece. Cup dimensions: diameter 9.8 X W 12 (width with handle included) X H5cm. Dimensions under cup: diameter 15cm. Very good general condition, note only a rather discreet shine on the edge of a cup (see detail photo with shine surrounded), 2 cups with the background shade slightly "cream" (a little less pure white than the other 2).