Rare and Important Large-Sized Redware Ale Mug with Copper Glaze, Stamped "J. BELL", John Bell, Waynesboro, PA, circa 1840, thin-walled, baluster-form mug with flared base, applied strap handle, and tooled rim, the surface covered in an emerald-green, lead-and-copper glaze over a white slip coating. This mug's underlying slip treatment continues on to the interior of the mug, where it is coated with a lead glaze, contrasting beautifully with the heavy green on the exterior body and interior rim. Some blackish-glazed areas to the base suggest a third possible colorant or possibly higher concentrations of copper. Later Bell pieces, mostly notable a group of pitchers and flowerpots, utilize a similar glaze, which assumes an almost neon-green coloration. This mug aptly displays Bell's mastery of both potting and glazing. It is the earliest example of his work that we have seen displaying what we consider one of his most striking and sophisticated glaze treatments. Wear to rim. Some mostly small flakes of wear to handle. Body of mug survives in rarely-found excellent condition with some very minor surface wear. H 6 1/2".