I originally took a closer look at this coin because of the die crack at the BE in LIBERTY, but the reverse really stood out to me. What’s the most likely cause of the 4 dots on the west side of the N in CENT? They could just be die chips, but their positioning was strange.
It's a Die Deterioration issue on the letter N. That's why you see the Ghosting on the Reverse. https://www.error-ref.com/progressive-indirect-design-transfer/
I agree that it was struck with worn die due to the ghosting on the reverse. That is very prominent. The 4 abnormality on the side of the "N" may be from the die being dressed, cleaned or "polishing" as some say, just speculation really, but I don't think they were caused by normal die wear. Random die chip is a possibility I would not discount.
I don’t know its origins, just that it came from a collection I purchased. It was already in a 2x2, not labeled other than with the date and MM.