At one side of the pit there is the cellar. When the pit is completed an entrance will be made between cellar and pit. A smale hole has already been made where once was a carbon coal entrance hole.
As the cellar is deeper than the pit a staircase has to be made.
On the other side of the pit I will make a ladder so there will be two entrances/ escapes.
The necessary materials to make the concrete.
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