7th November 2007
Photos by Harris Digital Productions
Stonemasons measure the thickness of stone through the joint
Pencil diagram shows; Shape of the stones and how they fit together at the bed joints
Stone Cleaners carefully remove black carbon build up during the cleaning process
Location; Moulding below black limestone viewing platform
Black limestone viewing platform (west elevation) after being cleaned with the Jos system
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Last updated:
29 November, 2008