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- Description:
- Black and white photographic print mounted on fabric depicting a Jeffery Dewitt Kiln under construction at the Champion Porcelain Co. Dated July 18 1919.
- Date Issued:
- 1919-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Collection:
- Champion Spark Plug Co.
- Description:
- Black and white photographic print mounted on fabric depicting the preheat end a Jeffery Dewitt Kiln under construction at the Champion Porcelain Co. Dated 5-9-1919.
- Date Issued:
- 1919-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Description:
- Black and white photographic print mounted on fabric depicting a Dressler kiln control panel in the operator room at the Champion Spark Plug Co. Caption on verso reads: Taken for Dressler Co. March 1921.
- Date Issued:
- 1921-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Description:
- Black and white photographic print mounted on fabric depicting equipment in the Department #36 Process Laboratory at the Champion Spark Plug Co. Caption on verso reads, "General view of Process Laboratory where bodies can be put into production without interfering with factory production."
- Date Issued:
- 1922-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Description:
- 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."
- Date Issued:
- 1922-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Description:
- Black and white photographic print mounted on fabric depicting the head end of a Jeffery Dewitt Kiln under construction at the Champion Porcelain Co. Dated July 7th 1919.
- Date Issued:
- 1919-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Description:
- Black and white photographic print mounted on fabric depicting equipment in the Electrical Laboratory at the Champion Spark Plug Co. Caption on verso reads, "Electrical Laboratory where the thermocouples are tested and various instruments made."
- Date Issued:
- 1922-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Description:
- Black and white photographic print mounted on fabric depicting the inside of a Jeffery Dewitt Kiln under construction at the Champion Porcelain Co. Dated July 18 1919.
- Date Issued:
- 1919-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Description:
- Black and white photographic print depicting equipment in the product testing laboratory at the Champion Spark Plug Co. Caption on verso reads, "Product Testing Laboratory. From left to right are shown an impact testing machine from completely assembled spark plugs, an intermittent heat shock testing device, a modified Olsen tensile strength machine, the electric furnace and recorders for determining the temperature-electrical resistivity curve for assembled spark plugs, and a falling-weight impact tester for cores."
- Date Issued:
- 1922-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
- Description:
- Black and white photographic print mounted on fabric depicting the preheat end a Jeffery Dewitt Kiln under construction at the Champion Porcelain Co. Dated May 25th 1919.
- Date Issued:
- 1919-01-01T00:00:00Z
- Data Provider:
- Detroit Historical Society
