set of original and intact two-leaf hinge mold-blown aqua blue glass soda water bottles designed and bottled by chas. westerholm & company, chicago, il. the nearly identical blob top bottles contain the manufacturer's monogrammed logo along the front and base of each bottle. the thick glass hutchinson type bottles were discovered in chicago residential privy pits. the two bottles were likely fabricated around 1890-1900. surface wear and discoloration from being buried evident. "blob top" soda and/or mineral bottles were blown in hinged metal or wood molds and utilized thick glass walls to withstand the pressure exerted by their carbonated contents. the applied lip of the "hutchinson" type bottle was a large and distinctive "blob" round and bulbous piece of glass that was applied separately around the neck of the bottle. once a blob top soda bottle was filled with mineral water or artificially carbonated soda water, a cork was inserted into the opening and usually held in place by either a putnam stopper or a wire looped over the top and twisted around the neck beneath the blob. these externally-stoppered bottles were phased when charles g. hutchinson developed and patented his internally-stoppered steel wire loop seal that gained increasing popularity with bottlers and consumers. priced for the pair.