Headstamp Help Im Not Sure Very old or Newer

[Older The Better]

I found this shell at what I suspect is a mid to late 1800's site, nobody seems to know anything about a structure ever being there and in maps going back to 1904 there is no building marked, but there is a lot of material in the ground, ceramics, flatware, buckles, an axe, decorative buttons, recently I found a small brass bell. an oldtimer claims its dump but there is a draw right next to the hill that I find things on, considering all the other dumpsites around are in draws I dont know why this one would be on a hill... anyway

I found this shell and initial research was telling me 1920's ish but all of the shells were climax not new climax, initially I thought that new climax must be younger than climax. then I stumbled across this from Turtle Foot who I take as a very reliable source.

"Can You post a pic of the New Climax headstamps? That is one of the rarest and earliest US headstamps that there is!"

this was in response to a person also hunting a mid to late 1800's site. now I dont know what to think.

 

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[Icewing]

"U.S. Cartridge closed down on January 1, 1927"
https://lowelllandtrust.org/greenwayclassroom/history/USCartridgeCompany.pdf

 

[A2coins]

good ID

 

[Older The Better]

That puts a solid end date on it, I was researching headstamps for a while before I posted so I probably was a little vague, compared to the rest of the shells ive found 1927 would be on the newer side compared to my oldest potentially as old as 1884... so I originally was suspecting the 1920's but turtlefoots comment makes me wonder if its closer to the 1884 date or older, although cant be by much. To my knowledge if you get much older than that and the shells were solid brass.