File 505
Container
Contains 1 Result:
Coyne, William, 1906-1930
File — file: 505
Accession: 0473
Scope and Content:
Correspondence with DuPont Company vice-president and sales director William Coyne. Topics include general family and company news; discussion of business and investment opportunities; securing of cipher-code patent; list of DuPont Company employees buying non-GM automobiles; letters of introduction
Dates:
1906-1930
