by Tom Avril

The Triumph of David was a mess. Old, original paint on the 17th-century canvas was faded and flaking in many spots. Newer paint from several inexpert restoration attempts had become discolored.

Standing before the massive painting at Villanova University, art conservator Kristin deGhetaldi could tell all this with her experienced eye. But in order to bring the painting back to life, how could she tell where the old paint ended and the new paint began? The answer: a mix of art and science.

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Source: http://www.kansascity.com/