Yup: They found old Portuguese and Spanish coins, likely from the 1700s.
Visits to numerous antique stores in the area revealed that these coins are the real deal.
Finding real, centuries-old treasure is exciting in and of itself.
But what’s that at the top of the box? Could it be what it actually looks like?
That's right, it's a preserved human hand wearing a ring.
Why their great-grandfather would keep that, they may never know.
The Lopez family is still trying to make sense of it all.
“Either my great-grandfather made the best, most elaborate pirate hoax ever and never shared it with anyone or he really did find some treasure on the Hillsborough River. There’s really no way to know which is the case,” Maria Lopez said in an interview.
No matter the truth, it's a pretty amazing thing to find in an attic.
It also reminds us all that you never know what might be hiding in storage — so don’t just assume it’s all dusty Christmas decorations. You could be sitting on a literal treasure!