Ironstone Ceramic Dates

The Florida Museum of Natural History, located at the University of Florida, inspires people to value the biological richness and cultural heritage of our diverse world and make a positive difference in its future. White Granite (aka White Ironstone) Note to reader: This essay's purpose is to provide an overview of white granite that will be of assistance to archaeologists attempting to more easily date and identify fragmentary vessels. Ironstone china, ironstone ware or most commonly just ironstone, is a type of vitreous pottery first made in the United Kingdom in the early 19th century.

It is often classed as earthenware [1][2] although in appearance and properties it is similar to fine stoneware. [3]. Ironstone - key dates: 1800: The first successful manufacture of ironstone was achieved in 1800 by William Turner of the Lane End potteries at Longton, Stoke.

Ironstone (semi‑vitrified or vitrified) Type: Vitrified white earthenware Date range: c.1815-1900+ Peak: after 1850 (plain variety) Place of origin: England, North America In texture, ironstone is intermediate between earthenware and porcelain, although it is technically an earthenware. Decorative methods include moulded relief, transfer print, painted, gilded and slip. Undecorated Stone China is most common after ca.

1840, and most of the granite wares,and ironstone pottery before that date were decorated with transfer printing, painting, enameling or a combination of these. Decorated Stone China /Ironstone dates to about 1805-1840 (Miller 1991). This description of Ironstone, Undec.

The mark was in the shape of a diamond with numbers and letters at specific points to represent the type of material used and the date of registration. The top of the diamond identified the class, which for ironstone was Class IV, Ceramic. Decorated ironstone dates between 1805 -1840.

Undecorated ironstone became common after 1840, and most of the granitewares and ironstone pottery before 1840 were decorated with styles such as transfer printing, painting, enameling or some combination or variation of these (FLMNH). Ridgway. All producing Ironstone-type wares in competition with Mason's and in some cases producing the same pattern.

New marks on retailers, colleges, regiments and armorial are constantly being found and recorded. Ceramic ware produced between 1842 and 1883 bore a diamond. To tell the age of ironstone, examine its backstamps.

Although genuine ironstone usually does not have the year of production stamped on it, most makers add some type of identifying mark, such as a logo, name or style number. You can research the markings on your ironstone using trusted online resources and examine online catalogues to date it. Another approach is to have a certified appraiser.