Laser cleaning Gallo-Roman funerary steles in Geneva

Following successful laser cleaning tests carried out at Geneva’s Musee d’Art et d’Histoire in February, conservators decided to hire one of our Compact Phoenix systems for three months to clean ten funerary steles, altars and monuments for a forthcoming exhibition. The pieces date back to the Gallo-Roman era (1-300AD) and laser cleaning at 1064nm is proving to be very effective in removing black pollution encrustations and other dirt layers from the limestone surfaces in a very controlled manner.