Hoping someone here might have some knowledge of this old Dupont gunpowder. Let me start by saying I am not planning on reloading with it, as I think it's about 100+ years old. But when getting ready to dump the last few ounces out, I was shocked to see the orange color!
Here's a picture:
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From the old advertisements I discovered this can style and powder were introduced around 1907, and not sure how long it was offered. I'm guessing the orange colored gunpowder is the original. I dumped much of it before I decided to see if it burned well. I stopped and took some outside and touched a match to it, and was surprised how well it burned. The back of the can has various load suggestions for shotguns, and it says on the can it's a "shotgun powder".
If anyone has any input on it, I'd appreciate comments. I also picked up another empty can of Dupont Schuetzen Smokeless, with a beautiful color label of a schuetzen competitor and his gun on the front! I think it also dates to around 1900, but not sure on it.
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IIRC, you might find reference to it, and to loads in Schuetzen calibers, in the 1941 edition of Phil Sharpe's Complete Guide to Handloading.  The 1941 edition has a chapter on Schuetzen rifles by Ned Roberts, in addition to Sharpe's discussion (both editions) of the early powders.

I know that the 1937 edition is available for download on the net, copyright long gone, but I do not know if anyone made the 1941 edition available.

The first American smokeless powder manufacturer was the American EC & Schultze Powder Company of Oakland, New Jersey in 1890.  Schultze Powder, for shotguns, was a single base powder made from wood, US Patent 38789 of 1863.  This company was one of many acquired by DuPont and transferred to Laflin & Rand and then Hercules in 1912

1863 US Patent 38789 ...
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I'll have to get out my copy of Sharpe's book, and also Ned Robert's book to see if they might add anything. I have lots of reference material on old cartridges, but powder seems to be very little material done.