Collection: Champion Spark Plug Co. / Topic: Laboratories - Topics - Michigan Memories Search Results

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1. Black and white photographic print depicting equipment in the product testing laboratory at the Champion Spark Plug Co

2. Black and white photographic print mounted on fabric depicting equipment in the Electrical Laboratory at the Champion Spark Plug Co

3. Black and white photographic print mounted on fabric depicting the Raw Material Testing Laboratory at the Champion Spark Plug Co. Caption on verso reads, "The Raw Material Testing Laboratory where the raw materials are tested before being released for production."

4. Black and white photographic print depicting equipment in the Chemical Laboratory at the Champion Spark Plug Co

5. Black and white photographic print mounted on fabric depicting equipment in the Electrical Laboratory at the Champion Spark Plug Co