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St. CALLISTUS |
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Last arcosolium on the left before the exit stairs Sample type: plaster, tufa Description of the site: arcosolium along the corridor open to the public Alterations observed: green biofilm, white patinas |
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Cubiculum “Le Pecorelle” Sample type: fresco, plaster, tufa Description of the site: no access to visitors, no light Alterations observed: white and black spots |
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