Fig 6 Detail of cleaning in progress: the intricate nature of the high relief-moulded decorative tiles requires methodical method of cleaning.

Fig 6 Detail of cleaning in progress: the intricate nature of the high relief-moulded decorative tiles requires methodical method of cleaning.

Fig 6 Detail of cleaning in progress: the intricate nature of the high relief-moulded decorative tiles requires methodical method of cleaning. Dampened cotton wool on a wooden swab stick  is rolled lightly across the surface to lift the dirt off the surface (a wiping motion can push dirt into any surface irregularities, cracks or chips rather than remove it).