Lock & Key

By Stephen Tchudi

Traces the development of locks from the stone and wood fasteners of ancient times, to the bolts and bars of the Middle Ages, to the invention of modern security systems, and profiles famous lock... This description may be from another edition of this product.

• Format: Hardcover
• Language: English
• ISBN: 0684193639
• ISBN13: 9780684193632
• Release Date: October 1993
• Publisher: Scribner Book Company
• Length: 113 Pages
• Weight: 0.95 lbs.
• Dimensions: 0.6" x 7.2" x 9.3"
• Age Range: 9 to 12 years
• Grade Range: Grades 4 to 7