According to Michael Gibson 19th Century Lustreware by Michael Gibson there were 16 potteries in Sunderland of which 7 are known to have produced lustrewares (alongside conventional wares of various types) in the nineteenth century. Many are not marked, and are hard or impossible to distinguish from similar wares made in Staffordshire pottery, as well as Newcastle upon Tyne and North Shields, so to some extent Sunderland has become a term for the style, rather than a specific indication of origin.
