Winch on the first ammunition level which pulls up the shells and shell cases from down the tunnel up into the turret shaft.
Storage of shell cases in four rooms round the turret shaft.
They were prepared here and transported up with lifts.
One level higer: shells waiting to be transported up. Blue ones are armour-piercing ones, the yellow ones are high explosive shells.
Like the shell cases, the shells were moved to the core of the shaft, and lifted to the guns.
Inside a ship on land.