Horolovar 400 Day Clock Repair Guide 10th Edition By Charles Terwilliger

The Horolovar 400 day clock repair guide contains valuable information and illustrations and is known as the bible of anniversary clocks. This is the 10th edition that has been revised and updated with editing by H.W. Ellison and you will find not only useful technical articles, but historical interesting information that is a must have for the clockmaker enthusiast or repair person.

• A history of 400 day clocks
• Clock design patent information
• Instructions, repair guides, and tips
• Backplate illustrations to help identify manufacturers and clocks
• Mainspring and suspension unit technical information
• Manufacturer and importer information
• Clock movement part illustrations for major manufacturers
• Hardcover: 237 pages
• Copyright 1991
• edited by H.W. Ellison