Probably a simple Die Gauge. When the Die used to strike the blank planchet is somehow scratched that small area will appear a bit raised on the coin.
OK, I pulled up an overlay of what would be a die clash and that certainly did not make sense, your direction does make sense.
@expat ...you’re not missing posts. OP mentioned it first in #3. What is there could be die clash, die break or most probably a die gouge as instructed by @paddyman98 ...Spark
Something not quite right, I have the original OP, then paddy then the OP talking about an overlay and clash