"And old coins are just really neat and intriguing to me, just thinking you can find one with a metal detector, but I found a whole chest ... a safe-deposit box," Wakefield said of the treasure.

After spending four years searching for a treasure chest that had allegedly been hidden ... that Forrest Fenn had used to keep the items safe from the elements when he hid his treasure in 2010.

The Michael Jordan rookie card was among the contents of an unclaimed safe deposit box Iowa Treasurer Roby ... from the sale will stay in Great Iowa Treasure Hunt for the rightful owner or heir ...