Short answers, pulled from the story.
Charles Lindbergh arrived in San Diego on the 23rd of February 1927. He entered the Ryan Airlines factory to meet Benjamin Franklin Mahoney and Donald Hall for the project.
The flight lasted thirty-three hours and thirty minutes from takeoff to landing. Charles Lindbergh departed Roosevelt Airfield on the 20th of May 1927 and landed at Aéroport Le Bourget in Paris shortly after.
The original Spirit of St. Louis hangs suspended in the atrium of the National Air and Space Museum since 1976. It previously resided in the Arts and Industries Building from 1928 until 1976 before moving to its current location.
Conservators applied a clear layer of varnish or shellac to preserve artwork painted on the engine cowling decades ago. This protective coating yellowed with age resulting in the golden hue seen today which Smithsonian officials decided to keep as part of the natural state.
Major Thomas Lamphier and Lieutenant Philip R. Love are the only individuals other than Lindbergh who ever piloted this specific aircraft. They each flew the plane for ten minutes during a three-month tour across the United States.