This is the mark of Elverson, Sherwood, and Barker. Width at shoulders = 9.5. Width at Base = 9. The item "18th c Cobalt decorated slightly ovoid 2 Gal Salt Glazed PA Stoneware Crock" is in sale since Sunday, November 05, 2017. This item is in the category "Antiques\Decorative Arts\Ceramics & Porcelain\Crocks".The seller is "phil4768" and is located in Nantucket, Massachusetts. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, Sweden, South Korea, Indonesia, Taiwan, South africa, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Russian federation, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Dominican republic, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica.