The E. I du Pont de Nemours & Company minute books document an important era in the history of the company from just before the turn of the twentieth century through the 1930s. The DuPont Company in this time went through many changes in structure...
Mailboxes; Postal Service; Building construction; Office buildings; Correspondence;
Letter with photograph enclosure from Wark Company Builders to Delaware Land Development Co. concerning the installation of the Cutler brand mail chute to be installed in the Delaware Trust Building.
Letter from the City of Wilmington, Delaware to the Delaware Trust Corporation granting permission to use public areas for installation of the bank vault in the basement of the Delaware Trust Building.
Building construction; Marble; Contracts; Office buildings; Banks; Correspondence;
Letter from Delaware Land Development Company to Wark Company regarding the contract with Hilgardner Marble Company of Baltimore, Maryland for installation of marble in the building addition of the Delaware Trust Building in Wilmington, Delaware.
Letter informing Mrs. Marion Somerville du Pont, William du Pont, Jr.'s sister, of the final costs associated with the installation of the air raid notification system on her property.
Aim ray at absenteeism: "Industrial Ultraviolet Ray Solarium", aimed at reducing absenteeism in war plants, is official name for the merry-go-round system of artificial sunlight irradiation (above) introduced by the Hanovia Chemical & Mfg. Co.,...
Composed of eleven compact and connected units the IBM Electronic Data Processing Machines comprise the first calculator of comparable capacity to be produced in quantity. This new calculator uses all three of the most advanced electronic storage...
