1991.064.361
Print, Photographic
Black and white photographic print mounted on fabric depicting equipment in the testing laboratory at the Champion Spark Plug Co.
Caption reads: Photograph 25
Research Laboratory - Testing Laboratory for finished product. Note the equipment for high hot dielectric or electrical leakage test for porcelains at high temperatures. Also laboratory tensile test equipment, impact apparatus and so forth. No material is shipped from the factory until average samples have been checked in this laboratory.
