![Private Label Trade Names on American Pocket Watches: The Non-Magnetic Watch Company: Part 23: Waltham’s Grand Demonstration img](https://blog.pocketwatchdatabase.com/wp-content/uploads/2021/12/Waltham-Testing-Non-Magnetic-Watches-ScientificAmerican-April141888-1024x1024.jpg)
Pictured: “Testing Waltham Watches with the Great Cannon Magnets, Willet’s Point N.Y.” - Scientific American, April 14, 1888. Following Thomas Edison’s endorsement praising the Non-Magnetic Watch Company’s watches, Waltham fired back with a grand demonstration that exhibited the properties of their own non-magnetic watch. In...