rare and intact c. 1847-1851 vibrant teal glass pontiled soda bottle likely manufactured by dyottville glassworks in kensington, pa. the sloping shoulders and long narrow neck are finished with a somewhat crude applied tapered lip that features slop, bubbles and whittling. the lower body is embossed "this bottle is never sold" in block lettering wrapping around the glass. a deeply rounding base features a high kickup that retains residue from the iron pontil. there are two bumps on the base, around the edge of the kickup. crudities are typical of age and date of manufacture, including surface wear. manufacturer or bottler is unmarked. dyottvillle glassworks was founded by englishman, thomas w. dyott, a young, self-proclaimed doctor who began selling "medicinal" elixirs early in the 19th century in the form of vegetable nervous cordial, infallible toothache drops and stomach bitters from a philadelphia-based drug store located at 2nd and race street. his great success in the patented medicine business allowed him to purchase kensington glass works during the 1820's. there, he could produce and bottle his concoctions along with those of competitors. by the 1830's his rapidly expanding glassworks, located in the town of dyottville, pa., would employ hundreds of highly skilled glassmakers that produced over ten thousand pounds of glass a day. by 1837 the economic depression, coupled with charges of defrauding the community would spell the end to dyott's empire. at the age of 70 years, dyott was sentenced to the eastern state penitentiary. shortly thereafter, his glassworks factory would close and the small town of dyottville was essentially wiped off the map. the glassworks would later be purchased by prominent philadelphia bottler eugene roussel in 1840.