Metal dectecting is a popular hobby, but vintage models like this aren't terribly collectible. It's in good shape, though, so you might be able to move it.
- Fact 1: A metal detector works by producing a large magnetic field and sensing any variations caused by metallic objects passing through it.
- Fact 2: The first detectors were developed by Alexander Graham Bell and other 19th-century inventors; high power consumption made them impractical until the mid-20th century.
- Fact 3: The first practical metal detectors were used in WWII to detect German mines. The equipment used fragile vacuum tubes, weighed thirty pounds, and required external batteries.
- Fact 4: After WWII, industrial mining companies adopted metal detection systems. As technology improved and prices dropped, metal detectors became affordable to hobbyists.
- Fact 5: In the early 1970s, the thirteen-pound Mojave Nugget was discovered in the California desert. It remains the single largest gold nugget found with a metal detector.