But atoms from the original paint were also found in the varnish, which may therefore be left in place.
BBC: Van Gogh's Flowers In A Blue Vase damage seen in X-rays
The car still has the same engine but has since been fully restored, with the original paint returned to its skin and a complete overhaul of the engine.
The purpose was to determine not only what was in the samples in terms of atoms and molecules, but also the precise structures in the interface layer between the original paint and the varnish.
BBC: Van Gogh's Flowers In A Blue Vase damage seen in X-rays
It was painted that way because Kahlo and Rivera felt that the bright colors represented Mexican culture better than the original white paint.
To fake an original patina, restorers sometimes paint a chair with a mix of automotive paint and baby powder, then torch it.
Paint still in its original condition, for example, can make or break the value of a chair.
Among other things, the Tarantinos stripped paint from faded black concrete floors and tracked down their original red pigment.
Although the structure's exterior was protected by the New York City Landmark Commission, its interior (converted to offices and apartments in the early 1980s), with all its original Gothic detailing, had been virtually covered over with Sheetrock and paint.
You then 'paint' the color back in using a brush tool, restoring the original colors into the areas of the photo that you want to.
One way would be to use image manipulation software - such as Photoshop or Paint Shop Pro - to create a fake message that would look similar to the original, but with different content.
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