Found this two weeks ago and was wondering the age I think this is a hat pin but could be wrong there's no badge number. I can't find the ageless of this to save my life it is lead filled and the eagle is definitely and older style.
How big is it JmCraz8? Usually the hat badges are smaller and most have a single stud that fit through a hole in the hat and was attached with a screw or clip. Your badge has the remains of a pin, which indicates it was used as a uniform or wallet badge. I bet if you called the Charleston PD, someone there could date it for you. Neat find!
Looks like a shirt badge. This style could be from the 20’s up to maybe the 50’s or 60’s. It depends on the agency. Like I said, contact that department, someone there can probably date it for you.