Your NJ would not be called an illegal. An illegal was used in a illegal club and has some form of attributation to the club.

What you have is a UFC. No one knows where or what purpose, it was used for. TGT lists the NJ - H mold chip as unknown. I have checked the HC Edwards records that we recently purchased and it is not there.
UFC is short for "Unidenfied Flying Chip" a term coined ny Michael Knappp in his CCGTCC magazine column.