Charleston slave badge from 1862 for Porter No. 1128 / 1863 for Servant No. 44

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 “1862 [stamped] / PORTER [stamped] / 1128 [punched].” On the verso is text that reads ”CHARLESTON [stamped]” across the top. Under that is “44 [punched] / SERVANT [stamped] / 1863 [stamped].” There is a hole punched at the center top.