Charleston slave badge from 1816 for Mechanic No. 39

This is a square metal slave badge with clipped corners. On the recto is text that reads ”CHARLESTON [stamped]” across the top. Under that is “1816 [stamped] / MECHANIC [stamped] / No. [stamped] 39 [punched] .” On the verso is a stamped cartouche at the center top with the maker's name “LAFAR.” There is a hole punched at the center top.