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St. CALLISTUS |
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Cubiculum of "Oceano" Sample type: tufa, biofilm on fresco Description of the site: artificial light, no direct access to the public Alterations observed: green, grey and white patinas; white and black spots |
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Wall in the corridor of the Cubiculum of Caio and Eusebio. Sample type: brick, plaster Description of the site: corridor open to the public, artificial light Alterations observed: green biofilm and white patina and/or incrustations at the borderline |
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