From the Facebook site of the Friend of Hunley:
The Hunley is almost completely visible for first time in over 150 years. Until now, the world’s first successful combat submarine has been covered in an encrusted layer that built up over time while lost at sea.
Using small hand tools to break away this rock-hard layer, they must be careful because even the smallest mistake could potentially damage one of maritime history’s most treasured artifacts.
So far, the project has gone flawlessly. Click like to tell conservators good job and watch the Hunley’s true surface be revealed.