Thanks Frank.
DuPont purchased Laflin & Rand in 1902, and The American "E.C." and "Schultze" Powder Co. in 1903. In 1904, “New E.C. (Improved) No. 3” and “New Schultze” were listed as Laflin & Rand products.
In the later part of 1906,
Sporting Life carried advertisements for “New E.C. (Improved)”, “New Schultze” bulk powders, and “Infallible Smokeless” dense powder as products of E.I. du Pont de Nemours Powder Company.
More infro here
https://docs.google.com/a/damascuskn...UOZEFU/preview