Antique spark Plug Collectors Guides - 3 Volumes By Bergbower

This set of three antique spark plug collectors guides by Bergbower is a must-have for any automobilia enthusiast. Written in the United States, these guides provide valuable information on the history and development of spark plugs. With detailed descriptions and illustrations, they are a great resource for collectors and hobbyists alike. The guides cover a range of topics, including the evolution of spark plug design and the various materials used in their construction. Whether you are a seasoned collector or just starting out, these guides are sure to enhance your understanding of this important aspect of automotive history.