@min, clearly there was something going on with the punch when this mintmark was put into the die as the vertical stroke is so much wider at the bottom. If it was a RPM though, I'd expect a nice split serif on the bottom. There is a small ding, but no split serif at least as far as I can see. So perhaps the punch was a bit damaged when it was used?
"If you climb a good tree, you get a push."
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz
-----Ghanaian proverb
"The danger we all now face is distinguishing between what is authentic and what is performed."
-----King Adz