Charleston slave badge from 1825 for Mechanic No. 179

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 “1825 [stamped] / MECHANIC [stamped] / No. [stamped] 179 [punched] / LAFAR [stamped].” There is a hole punched at the center top.