Well this is getting frustrating. Now I know how John feels. I typed an answer, a short one this time, and it disappeared when I tried to post it. Back to WordPerfect.
I think we need to start over. I misread your question (I thought you said USC) and I also made another mistake.
First the mistake - The 1909 Palma contract was won by UMC. 180 grain Thomas bullet. Headstamp 3-09.
UMC submitted at least one National Match entry in 1909. A note says that a UMC entry was loaded with a pointed “Russian” bullet. Not sure what that means and there was no further explanation. Headstamp was 3-09 so that may be what you have. UMC finished last of the 4 companies. On the positive side they finished 4th.
I have several of the UMC 1910 cartridges. They are loaded with the 150 grain service bullet and have a bright red primer seal. Headstamp is UMC 3-10.
Most of my other comments still apply.