“Calvert” (2) "Calvert" type sets with flowers have not been made by John Calvert only. The set here is believed being made by Jaques. Another category of sets are called "Calvert" after the maker, like in the 2nd set here. Signed sets do exist as well. England, by (most likely) Jaques, "Calvert", ca. 1840 England, by Calvert, 18th-19th century