Recently came upon a few UFC's. Does anybody have any ideas on these chips? The green one on top is a HUB mold with gold-stamp "EF". The black chip is plain with a "B". It looks like the "B" was just scratched in there but it was "professionally scratched". The red one in the middle is "SAC". The "A" is larger than the two outside letters. The mold I think is OChain. The bottom two are SM-KEY with gold-stamp of "JH". Would appreciate anyone's thoughts. Thanks. Doug