Outer cross bar
Between the railing pillars were carved stone bars known as 'cross bars'. Each cross bar had a round sculpted face. The round face is all that survives of many of the cross bars.
This cross bar shows a lotus. The lotus is a very important symbol representing purity and goodness.
The lotus plant usually grows in the murky water of swamps and pools. Its sturdy stem grows up out of the water to support a pure, often white flower which blooms above the water.