Installing first of the large units on the North Elevation of Navigation Square Block B.

Design by Henry J. Lyons Architects. Facade by 20/20 Windows.  Navigation Square Block B. Installing first of the large units on the North Elevation. Credit to all CBS staff, Treaty Installations, William Walsh Teleport hire, Builders Hoist mastclimber, Robbie on traffic management. It is Wicona 60 system and glass is supplied by CareyGlass.