Catherine O'Leary's Cow Bell, Warehouse 13 Wiki

Catherine O'Leary's Cow Bell is an artifact featured in "Personal Effects". According to legend, the Great Chicago fire of 1871 was started after a cow at the O'Leary farm knocked over a lantern; in reality it was started by this artifact. Causes the surrounding area to erupt in a violent firestorm when rung. This bell was once installed in the door of a bakery in London, England by 1666. In being rung, it began the Great Fire of London. This bell later came into the possession of Catherine O'Le

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