Egyptologist Mohamed Ismail Khaled head of the joint Egyptian-German mission explained that the  team managed during the restoration process to know the original dimensions and layout of the antechamber. 

 

“Despite that the eastern wall of the antechamber was severely damaged, and only the north-eastern corner and 0.30 m of the eastern wall were still detectable, the mission was able to find traces of a low passage that was previously detected by British explorer John Perring in 1836, so this discovery proved that Perring’s previous observation was correct.”

 

 Khaled recounted that the eight storerooms were uncovered after removing all the rubble in the passage.

Egypt Today