Well, for what it is worth, TPR, the Prodigy Gold grades were 0.87 g/t Au. You don't need great grades to justify $50/oz Au takeover offers these days. Queenstake and their $100/oz Au offer were in the high end at around 5 g/t Au.
What are Probe's grades?
NKL has PGM+Au indicated grades of 2.25 g/t and inferred of 1.18 g/t.