Jasperware in the context of "Vase"

The Wedgwood anti-slavery medallion was an abolitionist symbol produced and distributed by British potter and entrepreneur Josiah Wedgwood in 1787 as a seal for the Society for the Abolition of the Slave Trade. The medallion depicts a kneeling black man in chains with his hands raised to the heavens; it is inscribed with the phrase "Am I not a man and a brother?"

The figure was likely designed and modelled by Henry Webber and William Hackwood with Wedgwood's involvement. The medallion was produced as a jasperware cameo by Wedgwood's factory—the Etruria Works— and widely distributed in Britain and the United States. These cameos were worn as pendants, inlaid in snuff boxes, and used to adorn bracelets and hair pins, rapidly becoming fashionable symbols of the British abolition movement. The medallion helped to further the abolitionist cause and is today accepted as "the most recognizable piece of antislavery paraphernalia the movement ever produced."

Josiah Wedgwood FRS (12 July 1730 – 3 January 1795) was an English potter, entrepreneur and abolitionist. Founding the Wedgwood company in 1759, he developed improved pottery bodies by systematic experimentation, and was the leader in the industrialisation of the manufacture of European pottery.

The renewed classical enthusiasms of the late 1760s and early 1770s were of major importance to his sales promotion. His expensive goods were in much demand from the upper classes, while he used emulation effects to market cheaper sets to the rest of society. Every new invention that Wedgwood produced – green glaze, creamware, black basalt, and jasperware – was quickly copied. Having once achieved efficiency in production, he obtained efficiencies in sales and distribution. His showrooms in London gave the public the chance to see his complete range of tableware.

Wedgwood is an English fine china, porcelain and luxury accessories manufacturer that was founded on 1 May 1759 by the potter and entrepreneur Josiah Wedgwood and was first incorporated in 1895 as Josiah Wedgwood and Sons Ltd. It was rapidly successful and was soon one of the largest manufacturers of Staffordshire pottery, "a firm that has done more to spread the knowledge and enhance the reputation of British ceramic art than any other manufacturer", exporting across Europe as far as Russia, and to the Americas. It was especially successful at producing fine earthenware and stoneware that, though considerably less expensive, were accepted as equivalent in quality to porcelain (which Wedgwood made only later).

Wedgwood is especially associated with "dry-bodied" (unglazed) stoneware Jasperware in contrasting colours, in particular in "Wedgwood blue" and white, always the most popular colours, though there are several others. Jasperware has been made continuously by the firm since 1775, and also much imitated. In the 18th century, however, it was table china in the refined earthenware creamware that represented most of the sales and profits.

Biscuit porcelain, bisque porcelain or bisque is unglazed, white porcelain treated as a final product, with a matte appearance and texture to the touch. It has been widely used in European pottery, mainly for sculptural and decorative objects that are not tableware and so do not need a glaze for protection.

The term "biscuit" refers to any type of fired but unglazed pottery in the course of manufacture, but only in porcelain is biscuit or bisque a term for a final product. Unglazed earthenware as a final product is often called terracotta, and in stoneware equivalent unglazed wares (such as jasperware) are often called "dry-bodied". Many types of pottery, including most porcelain wares, have a glaze applied, either before a single firing, or at the biscuit stage, with a further firing.

Sprigging or sprigged decoration is a technique for decorating pottery with low relief shapes made separately from the main body and applied to it before firing. Usually thin press moulded shapes are applied to greenware or bisque. The resulting pottery is termed sprigged ware, and the added piece is a "sprig". The technique may also be described by terms such as "applied relief decoration", especially in non-European pottery.

The alternative way to achieve similar effects without sprigging is to mould the whole body, which is also common. Pâte-sur-pâte is a very labour-intensive, and so expensive, method of producing similar, but more refined, effects in contrasting colors, invented in China and then in France in the mid-19th century.