Liverpool porcelain is mostly of the soft-paste

Soft-paste porcelain

Soft-paste porcelain is a type of a ceramic material, sometimes referred to simply as "soft paste". The term is used to describe soft porcelains such as bone china, Seger porcelain, vitreous porcelain, new Sèvres porcelain, Parian porcelain and soft feldspathic porcelain, and is also used more...

 porcelain

Porcelain

Porcelain is a ceramic material made by heating raw materials, generally including clay in the form of kaolin, in a kiln to temperatures between and...

 type and was produced between 1756 and 1804 in various factories in Liverpool

Liverpool

Liverpool is a city and metropolitan borough of Merseyside, England, along the eastern side of the Mersey Estuary. It was founded as a borough in 1207 and was granted city status in 1880...

. A portion of the output was exported, mainly to North America. Factories included those of Richard Chaffers, Philip Christian, William Reid, Samuel Gilbody and those of the Pennington family, James, John and Seth. For a short time, at the close of the eighteenth century, the partnership of Wolfe, Mason & Lucock made hybrid-hard-paste porcelain of a type first produced at New Hall in Staffordshire.
Reference: Liverpool Porcelain 1756-1804 by Maurice Hillis (2011).