Ozone Manufacturing Company stock certificate 1890's (New York)

Nice stock cert with a vignette of a large American bald eagle with wings spread.  Great under print below the company name.  Unissued and not cancelled. Dated 189_ on the piece. Circa 1890's.

The company purified liquids using ozone like many bottled water companies still do today. The large ozone apparatus consisted of a dynamo, a blower, a transformer, and an ozone generator proper. The dynamo supplied the current through the transformer and into the generator. Air from the blower pass through tubes and becomes ozonized  by the silent electric discharge of from the concentric glass tubes. The invention consisted in vaporizing the liquid to be purified by means of heat and introducing ozone into the vapors in sufficient quantities to oxidize impurities which pass over with the vapors, but not in sufficient quantities to change the nature of the liquid.

The device and the process was used in patent medicine and treatment of certain diseases.  Although making patients nauseous, doctors of the day were encouraged by the results.  The technology was better suited to purifying liquids and allowing the ozone to dissipate before drinking .