Scrape, scrape, scrape. Seven hours of scraping.
In the morning, we worked on Jesce, a farmhouse structure filled with frescoes from the 1600’s. Our job was to scrape away the “improvements,” where people had applied layers of whitewash and plaster over the original frescoes. 
One of our group uncovered a painting of an angel hidden for hundreds of years.
The human impulse to say “I was here.” Graffiti from 1778.
In the afternoon we worked on the really old stuff, scraping salt deposits from cave frescoes dating from 1450 at Campertino. 
I positioned myself as far from the actual artwork as possible, so as not to accidentally scrape off some pigment. Finally, we could break out the headlamps!
Gigi's Italia 