Odd Anomaly On Standing Liberty Quarter

I've been thinking on what would cause that gouge on the interior but leave shallower marks as well, especially on the rim.

I think some sort of rotary tool/wheel and the gouge was the starting point and then it lost control and skipped over the surface two times and lastly on the rim.

That could explain the metal displacement through heat, the nearly perfect linear pattern and the three smaller marks of slight contact.