- 1933-Oct-21 (Date of creation)
- 1934-Mar-01 (Date of revision)
Map depicting the facility and grounds of the Charles Lennig and Company chemical manufacturing plant in Bridesburg, a neighborhood located along the Delaware River in the Northeast section of Philadelphia,…
Hand-drawn floor plan of DuPont nylon pilot plant. DuPont operated pilot plants in both Wilmington and Seaford, Delaware, but it is unknown which pilot plant this diagram depicts.