During an archaeological investigation of the temple site, two highly polished limestone blocks were discovered. Approximately twelve feet east of the entrance to the baptistry and ten feet from either the side of the support piers rested the blocks, roughly fourteen inches square, which projected seven inches (178 mm) above the brick floor. These objects are not mentioned in any account of the basement, and their purpose is unknown. They may have held some type of support columns, dividing the font from the entrance to the basement, or they may simply have been a decorative element beneath a vase or something similar. They may have been part of a feature planned, but not used, in the final construction.