Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 142,074 pages of information and 227,775 images on early companies, their products and the people who designed and built them.
Portland Stoneware Co of 49 Federal Street, Boston.
1891 Winslow & Co, Proprietors, manufacturers of fire brick, shapes and tiles, grease traps, chimney tops, terra-cotta garden vases, stoneware beef barrels, stoneware for chemical purposes, red land tile for inder draining, wind guards to fit any size of pipe, fire clay flue and chimney linings and dealers in fire clay, fire mortar etc.
c. 1846 Founded by John T. Winslow.