Jackfield production is historically associated with the town of Jackfield in Shropshire, however it was also commonly produced in Staffordshire by potters like Thomas Whieldon (thus the use of "Jackfield-type" wares). It’s peak period of use was from about 1740-1760. Jackfield type ware made by Thomas Wheildon is characterized by a redder body and slightly more brilliant black glaze.
Very hard, dark purple to dark reddish-grey paste. Thin-walled vessels. Deep, shiny, lustrous (often almost metallic-appearing) black glaze on interior and exterior. Decorated Jackfield wares can have oil gilded or enamel floral or foliate designs, or be decorated with slip designs in sprigs, bands or lines.
“Hume 1969" was also listed on the FLMNH website but the bibliographic information was not provided.