The Georgian era Tradewinds Combination Sundial and Compass number CO008 by Authentic Models is a part of the Compasses Collection and measures 0.9H x 2.3 inches in diameter and weights 0.2 lbs. and is packaged in gift box, upc. The compass opened the world to exploration and discovery. Invented in China thousands of years ago, it was primarily used by feng-shui priests, hired to advise on how and where to build. Today the compass still is a basic tool, a magnetized needle rotating on a vertical pin, pointing at the Earths magnetic North. 16th century sailors accustomed to following coastlines, could suddenly cross oceans. This is a replica small Georgian era combination sundial and compass with brass lid to protect the convex glass cover.