I see split serifs on both the top and bottom so yes seems like a RPM you've got here. Not sure on the attribution though. Perhaps this enlarged view of the mm in position to the date can help:


"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
























