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Title
Vintage illustration diagram of compass N and S Mercury Boxes. #252682937
Description
Vintage diagram of compass North and South mercury boxes. A compass is a device that shows the cardinal directions used for navigation and geographic orientation. It commonly consists of a magnetized needle or other element, such as a compass card or compass rose, which can pivot to align itself with magnetic north. Other methods may be used, including gyroscopes, magnetometers, and GPS receivers.
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