Reprints of "Powders I Have Used" are on ebay. It was published by DuPont c. 1914.
https://www.ebay.com/itm/POWDERS-I-HAVE-USED-by-ANNIE-OAKLEY/223901612554?hash=item3421937a0a:g:rikAAOSwbb5dvKws
Smokeless "Schultze" Gunpowder was offered in the U.S. by Von Lengerke & Detmold in 1887.
The American “E.C.” & “Schultze” Powder Company was established in Oakland, New Jersey in 1890.
An advertisement for “E.C.” No 2 appeared in the May 30, 1896
Sporting Life “...made especially for small loads from 2 1/2 to 3 drs.; for heavier charges, from 3 to 4 drs., use our ordinary “E.C.” No. 1.”
August 22, 1896
Sporting Lifehttps://digital.la84.org/digital/collection/p17103coll17/id/47243 “E.C.” No. 2 - “VERY QUICK INDEED, NO SMOKE,
NO RECOIL, AND HARDLY ANY REPORT”
“E.C.” No. 1, “New Schultze”, and “New E.C. No. 2” were advertised by the company in 1902, which was
purchased by DuPont in 1903. In 1904, “New E.C. (Improved) No. 3” and “New Schultze” were listed as Laflin & Rand products.
1904
McClure's MagazinePost 5 possibly Fred Gilbert, post 4 F.S. Parmelee, 3 R.O. Heikes and 2 Jack Fanning
In the later part of 1906,
Sporting Life and
Sportsmen’s Review 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.
In 1912 under the Sherman Antitrust Act, Laflin & Rand was dissolved and DuPont was split into DuPont Powder Co. (which retained DuPont Bulk, Ballistite, Empire and “Schultze” and was later DuPont American Industries), Hercules Powder Co. (which retained “Infallible” and “E.C.”) and Atlas Powder Co.
I don't know how long "Schultze" was offered thereafter.
