Biloxi refers to the 1998 chip show where I traded for the chip.

From what I can tell the original chip was shaved on both sides and replaced by the star...

One Old West collector believes it was the work of an American Indian who made a breast plate where they were connected together by thin and narrow leather strap loops for a horse, such as they did with silver dollars (conchos).

Anyway, it's available for a MOP plaque or $$$'s.