There is a small manufacturing defect on the bottom, back of the crock that is pictured. On the back is stamped W. Lowry Pottery Company manufactured stoneware crocks like this then evolved to produce more cookware such as coffee pots. Here is a link to an article that has some information about the company. If you have any questions, please ask.
There is no reserve on this rare piece. The item "Antique W B Lowry 3 Gallon Decorated Stoneware Crock" is in sale since Friday, March 17, 2017. This item is in the category "Antiques\Decorative Arts\Ceramics & Porcelain\Crocks". The seller is "and2735" and is located in Bethel Park, Pennsylvania. This item can be shipped to United States, to Canada, to United Kingdom, DK, RO, SK, BG, CZ, FI, HU, LV, LT, MT, EE, to Australia, GR, PT, CY, SI, to Japan, SE, KR, ID, to Taiwan, ZA, to Belgium, to France, to Hong Kong, to Ireland, to Netherlands, PL, to Spain, to Italy, to Germany, to Austria, RU, IL, to Mexico, to New Zealand, SG, to Switzerland, NO, SA, UA, AE, QA, KW, BH, HR, MY, BR, CL, CO, CR, DO, PA, TT, GT, SV, HN, JM.