How do grandfather clocks work?

These timepieces rely on heavy weights suspended inside the trunk by cords, which pull on gear trains as they slowly descend. An anchor escapement and a swinging pendulum regulate the release of power, turning the hands at a measured pace. To keep the clock running, the weights must be periodically pulled back to the top using a key or winding cord. The pendulum must hang plumb and level for the escapement to maintain an even beat.

Where were these clocks placed?

Historically, tall clocks stood in hallways, stairwells, or principal living rooms where their chimes could be heard throughout the house. Their height required ceilings taller than standard modern doorways. Placing them against an interior wall protected the wood from damp exterior masonry and shielded the pendulum from floor vibrations. The ticking served as a constant domestic heartbeat.

How do I tell oak from mahogany cases?

Oak exhibits a pale brown tone with visible medullary rays and an open, coarse grain structure. It typifies earlier regional pieces from the Georgian period. Mahogany displays a denser, reddish-brown grain that darkens gracefully with age and polish. It is more commonly associated with fine London workshops and later eighteenth century styles.