A personal escort — flying first class to be well rested and alert — will accompany the painting “The Head of Christ” from the moment it leaves the Boijmans Van Beuningen museum in Rotterdam, the Netherlands, until it is safely locked in the vault at Springfield Museums in Massachusetts this month, when it will be exhibited in the United States for the first time.

http://www.nytimes.com/2014/01/01/arts/design/so-valuable-it-could-almost-be-real.html?ref=arts&_r=1&