Charleston slave badge from 1842 for Fisher No. 46

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 “46 [punched] / FISHER [stamped]/ 1842 [stamped].” There are two small chips out of the bottom proper right edge. There is a hole punched at the center top.