William Brownfield (& Son/s)
Waterloo Road, Cobridge, Stoke on Trent, Great Britain.
Hersteller / Manufacturer
The company was founded as Robinson, Wood & Brownfield in 1836, then from 1841 Wood & Brownfield. It became soley William Brownfield in 1850 and then William Brownfield & Son in 1871 & Sons in 1976. The company went bankrupt in 1892 and Brownfield's Guild Pottery Society was formed. Brownfield Pottery Ltd was formed in 1898, but finally ceased trading in 1900.
Reference: The Potteries Brownfield Advert Chronology
Jug marked 10/82 
Impressed mark from featured jug above, post 1860. 
Lidded jug marked 10/75. Capacity 4/5ths of a pint. Although unmarked, the lid could be by Benjamin Grayson & Son 
Impressed mark from featured 10/75 jug left, post 1860. 