What does the potawatomi symbol repusent?

Answer 1

It is not clear which particular symbol you mean.

The Prairie Band Potawatomi today use a badge that symbolises the real name of the tribe: bodéwadmi or Keepers of the Fire. The badge includes a cooking fire being lit by a lightning bolt, with a "fire eagle" and eagle feathers, together with a calumet or tobacco pipe used in ceremonials.

The Forest County Potawatomi use a badge featuring a cross within a circle (for the four directions), with a native tending a cooking fire and pendant eagle feathers.

These are clearly modern symbols and did not exist in the 17th, 18th or 19th centuries, although the ideas they represent were certainly part of the tribal culture.

It is likely that a symbol was used to indicate the Potawatomi people in 18th century documents such as treaties, but I have not been able to trace it.