This multicolor teacup, saucer and lunch plate is marked IMPERIAL IMARI Interpretation of an early 19th Century Oriental porcelain circa 1820 from the Private Collection of Georges Briard.
http://www.tias.com/14666/PictPage/3924086038.html
The vivid reds and green are offset with black, gold and pink in a Chinese style design. Only one of many lovely tea cups and trios on sale now at Garryannie!