SPOILER ALERT - DON'T SCROLL DOWN IF YOU HAVEN'T WATCHED THE FINAL EPISODE YET
Just watched the last episode of the season online. So, a Spanish copper coin that dates to the sixteenth century (can't have been that surprising as they already had the Spanish scissors found in a previous dig) - but all the gold and silver suddenly and mysteriously disappeared ...?
And what about the coconut fibre they found earlier that is supposed to be a few hundred years older than the coin - wasn't even mentioned in the final episode anymore ...
I haven't watched Ax Men ... but I quite like Jungle Gold (only one of the Gold franchises I've watched), mainly because I used to live in Africa myself. That one too has a lot more interpersonal drama and some of it looks a bit staged. It's on the Discovery Channel, though, rather than on History. I agree, on Oak Island they all seem to get along just fine.