hard to find intact and original late 1880's multi-paneled blue aqua glass bottle manufactured for arthur christin by cunningham and company, limited in pittsburgh. the 8-sided cylindrical glass has a squat neck with heavy whittling, and an applied blobtop collar that is largely intact except for chipping at the lip. it retains the original stopper. embossed vertically down multiple panels, block lettering reads, "arthur christin / chicago, ill. / this bottle / is never sold". seams evidence manufacture with two leaf mold. the base is smooth and slightly indented, with monogrammed letters "ca" embossed centrally. the maker's mark is just above the heel "c&co.lim", indicating it was fabricated in pittsburgh, pa between 1886-1907. arthur christin was an inventor who patented a bottle closure that improved on or adapted the preexisting gravitating stopper. christin received patent no. 161,863 for an “improvement in bottle stoppers” on april 13, 1875. at least six soda bottles with these unusual stoppers were made by the alexander & david h. chambers plant, all embossed with the a&dhc marking. bottles for the christin stopper had a wide groove debossed inside the throat of the bottle for a soft, rubber grommet. the stopper, itself, consisted of a hard rubber cone with two grooves near the top. the stopper was inserted into the bottle, then the grommet was installed. after the bottle was filled with soda, a wire tool was inserted into the bottle to grasp the grooves in the stopper and pull it upward until it seated against the grommet at the top of the bottle. like the hutchinson stopper, it was held in place by the force of the pressure created by the carbonation, and the bottle was opened by striking the top of the stopper downward, driving it into the bottle. measures 7 inches high.