Charleston slave badge from 1861 for Fruiter No. 77

This is a square metal slave badge set on point with clipped corners. On the recto is text that reads ”CHARLESTON [stamped]” across the top. Under that is “77 [punched] / FRUITERER [stamped] / 1861 [stamped].” There is a crease running from the proper top left edge to the bottom right edge. There is a hole punched at the center top.