From 1850, rapid strides were made in the improvement of the ware, and under W. Brownfield & Sons they became equal to any others produced. In earthenware, they made white, printed, enamelled and gilt ware, from the simplest to the more elaborate and costly patterns, in table, toilet, and dessert services and all the usual articles for household use. 

Many of the printed patterns are well designed; and in the better classes of goods, the enamelling and gilding are very effective. The shapes shown below were registered in June 1860. The printed design is coloured-over by hand. The stoneware and Parian jugs produced were a speciality of this firm. The typical jug form shown  was registered in January 1862. Tea services, tea-kettles, tea-pots, flower- pots, vases, jardinières, trinket services and other goods were also produced in earthenware, in every style of decoration. 

In 1871, the manufacture of china was added to that of earthenware, new buildings being specially erected for the purpose; and the productions in this department made rapid strides towards perfection. In china were produced dinner, tea, breakfast, dessert and other services, jugs, and a variety of useful articles, as well as vases and other fancy goods. 

Messrs. Brownfield & Sons in this branch produced some novel and very effective designs in dessert-services, centre-pieces, fern and flower-stands, etc. Notable among these is a pair of magnificent vases, exquisitely painted with Etty-like subjects of 'Morning' and 'Midday'. Among the minor pieces was an oviform vase representing the hatching of an egg: the body of the vase is true to nature in colour – that of a sea-bird's egg. Services with centre pieces were also made. These were produced in the very finest porcelain, and the figures – representing the seasons with their attributes – were modelled by Hughes Protat. Majolica was another of the specialities of Brownfield's manufacture; this had a good body, a firm glaze and brilliant colours. In this material, the firm manufactured all the usual ornamental and useful articles known to the trade. In Parian, too, a large percentage of figures, groups, busts, vases, and alt the usual – and many unusual – elegancies of home life were made. The body is of good quality.

The firm enjoyed a large home trade, as well as an export one to Denmark, France, Germany, Holland, Russia, Italy, Spain, Portugal and the United States. The manufactory was very extensive, upwards of six hundred persons being employed in the 1880s. 

In 1893 or 1894, the Brownfield's Guild Pottery Society Ltd. was formed. It continued until 1900, when the old works were demolished. Messrs. Myott rebuilt on the site in 1901. 

Source: Jewitt's Ceramic Art of Great Britain 1800-1900