According to Donald Trump, he received approval for a sign from Chicago Mayor Richard M. Daley's administration in 2009, but renegotiated with Mayor Rahm Emanuel's administration. In October 2013, Trump received approval to put a stainless steel letters back-lit with white LED lighting spelling out TRUMP on the 16th floor of the building. He made his plans for the sign public in February 2014. The five letters span a width of about , making the final approved version about , according to some sourcesrather than the originally proposed size. The sign is about above ground level.
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