Very Rare One-Gallon Stoneware Jar with Cobalt "Turnip" Decoration, Stamped "W. NICHOLS. / PO,KEEPSIE," NY State origin, circa 1823, ovoid jar with tooled shoulder and small lug handles, decorated on the front with William Nichols' distinctive brushed "turnip" motif, and on the reverse with an X. Cobalt highlights to handle terminals. The Athens, NY-trained potter, William Nichols, established his Poughkeepsie pottery in 1823 and tragically died later that year at the age of twenty-five. As this maker's mark was likely only used for several months, few signed examples of Nichols' Poughkeepsie work are known. Each marked object is considered a noteworthy artifact of a skilled potter's short career in a prolific, stoneware-producing city. Provenance: A fresh-to-the-market example, from a forty-year private collection. Large spider crack descending from rim on left side of jar's front, which splits, extending further onto jar's front in one direction as well as through left handle in another direction. Rim chips. Rim secured with a wire. Cracks to reverse and small flakes to shoulder on reverse. Some mottling to surface.