Mr Lucas's concern was understandable given the story Mr Keating once told about an earlier attempt to play the silver trumpet in front of King Farouk of Egypt. His story goes that the precious instrument shattered, possibly because of a modern mouthpiece being inserted to play it. According to Mr Keating's colourful account, Mr Lucas was left as shattered as the trumpet and needed hospital treatment. The instrument, at least, was repaired.
Full story here: LINK