Here be a pirate's watch from before the days o' clocks. Worn around the neck, these time pieces be treasured items fer a navigator. On a sunny day, suspend the sundial by its black cord n' through a tiny hole, a thin ray of sunshine will illuminate a number on the inside of the dial showing the time of day. This Aquitaine sundial was named after Eleanor of Aquitaine, who gave one to King Henry II of England so Henry would know when to return from the hunt for their love trysts. Calibrated for 40th parallel (Pennsylvania - Colorado) . About 1.25 inches in diameter. This be a rare find, n' we only have a few left.