After sitting vacant for a decade, the building underwent a residential conversion and reopened in 2007 as a condominium called the Mercury.
The property at the southwest corner of Wilshire Boulevard and Western Avenue had belonged for many years to the Getty family.
On March 9, 1960, J. Paul Getty announced from London that he planned to build a 22 storey, $10 million office tower on the site.
At the time he announced the project, Getty stated that construction would begin in July 1960 with a completion date of January 1962, though this schedule ended up pushed back.
The building is equipped with eight elevators, and a rooftop helipad was built to allow the bank executives quick access to their regional offices.
Also present at the ceremony were Union Bank vice-president John W. Luhring, George Getty II, and chairman of the County Board of Supervisors Warren Dorn.