"Press Button — Opening Golden Gate Bridge"
The Golden Gate Bridge opened on this day, May 27, 1937.
On the first day only pedestrian traffic was allowed to cross. On the second day, May 28th, President Franklin D. Roosevelt ceremonially opened the bridge to vehicular traffic.
FDR pushed a golden telegraph button from the Oval Office of the White House that was transmitted across the coast to the festivities in San Francisco.
Here is the White House Stenographer’s Diary entry for May 27th, 1937, recording FDR’s Golden Gate telegraph appointment. FDR telegraphed at three o’clock Eastern Standard Time so the California procession could begin promptly at noon.
-from the FDR Library