(a) Spark Plug. Material: porcelain, metal. Size: 3 1/2" L. Description: white porcelain cylinder - black lettering on cylinder: "Janesville" - metal nut and bolt with metal hook at one end - metal top at other end of cylinder. (b) Box. Material: paper. Size: 1 1/8" W. x 3 1/2" H. Description: yellowed cardboard - flip top opening - printed on front: "Janesville Products Co. Manufacturers Janesville Wis., U.S.A." - picture of spark plug on side - print on side: "Janesville Products Co. Janesville Spark Plugs" - print on side: "Highest grade porcelain Patented Oct. 18, 1898 Material and Workmanship Guaranteed".
