3 Corot, Le Pont de Narni The painting seen by ultra-violet fluorescence when partially cleaned. The vertical strips, appearing less fluorescent and therefore darker, are areas of removal or partial removal of the yellowed varnish coating upon cleaning. The remainder of the painting appears hazy because of the fluorescence of the resin varnish film. The arrow heads refer to restorations and / or repainted areas. One region of restoration A is not revealed by ultra-violet fluorescence, but is detected in the radiograph, and is uncovered after cleaning (see Figure 5). Back