Henry T. Brown

The chest was found in Mastrmyr on the the island of Gotland, Sweden in 1936. More than 200 objects were found in and around it. Most are tools that were used by blacksmiths and carpenters, many of them amazingly modern in appearance.

This compendium of ingenious mechanisms employs simple drawings to explain 507 of the small components that constitute complex machinery. Left-hand pages feature illustrations, and facing pages offer brief descriptions of use and operation. Ranging from simple to complex, the mechanisms include c...