Maiolica is a tin-glazed earthenware that was produced during the Renaissance in Italy. The name comes from Majorca, the island from which, in the 15th century, a lot of Hispano-Moresque tin-glazed pottery was brought into Italy. The technique of covering with a tin glaze earthenware was similar to that used elsewhere in Europe for delftware and faience.
The Imperial Porcelain Factory is a manufacturer of hand-painted ceramics in Saint Petersburg, Russia, also known as the Imperial Porcelain Manufacturer (IPM). It was founded by Dmitry Ivanovich Vinogradov in 1744 and has been sponsored by the Russian tsars since Empress Elizabeth. Many still refer to the factory, the Lomonosov Porcelain Factory, by its well-known former name.
Porsgrunds Porselænsfabrik is a Norwegian porcelain manufacturer. For more than 130 years, it has supplied the Norwegian market with crockery and ornaments in porcelain. From 1930 to 1980, Porsgrund was one of Norway’s leading design companies, and they received both national and international design awards.