William Morris Antiques has dated this piece to the 19th Century.
Designs were taken from contemporary engravings by the likes of Georg Dionysius Ehret.

Later in the 19th century such wares were copied by continental porcelain factories such as Samson et Cie of Paris.
I believe the plates to be of continental manufacture.
Condition: one plate has sign s of a hairline crack and there is some scratching to the enamel decoration.
7 3/4 inches diameter
William Morris Antiques has dated this piece to the 19th Century.
Jess william morris established himself in the antiques business in 1999 after being awarded an rics accredited fine art valuation degree
You can view the stock and full dealer information on the William Morris Antiques Profile Page