Stonemasons have buried a Time Capsule inside the floor of the upper chamber. A diamond drill was used to cut the 100mm diameter hole.

The Time Capsule contains a newspaper dated 10th September 2004, a set of mint 2004 coins, a group image of the stonemasons involved in the dismantling of Temple Bar at Theobalds Park, and a group picture of the stonemasons with the Lord Mayor, Alderman Robert Finch at Paternoster Square.

The Time Capsule was placed inside the hole on behalf of the stonemasons by the smiling Site Manager, Gary Collings.