Manufacturer: John Maddock & Sons Ltd.,
England, Royal Vitreous, Majestic: Burslem, Staffordshire. 1855-1987.
Earthenware of various kinds.
"Ltd", added to the title in 1896, many fully named printed marks, including the trade named: Vitrified or Royal Vitreous (c.1880-1896).
Source:
Items in Point Ellice House Collection:
Object Name: Dish, Serving (picture above) Accession Number: 1975.0001.0760