Theo Gribi

Private Label Trade Names on American Pocket Watches: The Non-Magnetic Watch Company: Part 35: Theodore Gribi’s Experiments

By Nathan Moore

In Science

Pictured: “Paillard’s Non-Magnetic Balances” Illustrations (Theodore Gribi), Western Electrician, September 22, 1888 After non-magnetic watches and anti-magnetic shields were introduced to the market in the 1880s, the industry was flooded with experiments testing the effectiveness of these new innovations in the presence of magnetism. In...

Science

Private Label Trade Names on American Pocket Watches: The Non-Magnetic Watch Company: Part 31: The Giles and Gribi Debate: Anti-Magnetic Shield versus Non-Magnetic Alloys

By Nathan Moore

Pictured: Illustration Demonstrating the Magnetic Field of a Magnetized Watch, “Magnetism in Watches” by Charles K. Giles, Western Electrician, June 30, 1888 As non-magnetic watches and anti-magnetic shields gained popularity.