Charleston slave badge from 1805 for Servant No. 342

This is an octagonal metal slave badge. On the recto is text that reads ”CHARLESTON [stamped]” across the top. Under that is “No. [stamped] 342 [punched] / SERVANT [stamped] / 1805 [stamped].” On the verso is a stamped cartouche at the bottom center with the maker's name “C PRINCE.” There is a hole punched at the center top. The top proper left corner and edge of the octagon are rounded rather than straight.