Page "Tower 42" Paragraph 11

Innovative features in the design included double-decked elevators, which provide an express service between the ground / mezzanine levels and the sky lobbies at levels 23 and 24.

Both the concept of double decked elevators and sky lobbies were new to the UK at the time.

Other innovative features included an internal automated " mail train " used for mail deliveries and document distribution ; an automated external window washing system ; and computer controlled air conditioning.

The tower also had its own telephone exchange installed in one of the basement levels – this area was fitted with panoramic photographs of the London skyline, creating the illusion of being above ground.