Collecting Antique Spark Plugs

Antique spark plugs tell tale of American industrialism and ingenuity

A French-made DeDion dating to the late 1890s is among the oldest spark plugs. This one (from Bob’s collection) was made for a three-wheel trike; it has never been used.
A French-made DeDion dating to the late 1890s is among the oldest spark plugs. This one (from Bob’s collection) was made for a three-wheel trike; it has never been used.