Percolators have a basket inside the pot that holds ground coffee beans. When the water in the pot boils, it filters through the ground coffee.
Modern Coffee Percolators
Many campers have a modern percolator, constructed of aluminum, so they can brew coffee on the campfire or propane stove, or during power outages at home.
Vintage Coffee Percolators
Vintage percolators, made from aluminum, glass or porcelain, can be old or newly made but crafted to look like an older version. Some "vintage" coffee makers are fine porcelain and painted with flowers, and yet use electricity to brew coffee. The term "vintage" is used mostly to describe the look of the peculator.
By contrast, an older coffee percolator is considered an antique, not always "vintage." Antiques percolators date back to the early 18th century.