Past Forward

Activating The Henry Ford Archive of Innovation

A Collaboration Measured in Meters

December 21, 2016 Innovation Impact

THF166102

imls-logoDuring the latter half of the nineteenth century, Professors William E. Ayrton and John Perry collaborated on inventing an array of instruments from electrical devices for railways to meters to measure electricity. The London, England-based company, Latimer Clark, Muirhead, & Co., manufactured this Ayrton and Perry ammeter between 1883 and 1890.  

Confident in their work, Ayrton and Perry personally certified the accuracy of their meters, which were touted as being among the most reliable. This ammeter, with its fascinating story, is one of the many objects being rediscovered as work progresses on The Henry Ford’s IMLS-funded grant.

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Laura Lipp is a Collections Documentation Specialist at The Henry Ford.

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