15th October 2007
Photos by Harris Digital Productions

Gary Collings, showing the specialist cleaners the sample areas to be cleaned using the Doff system (steam cleaned).

Gary Phillips, carefully removing the asphalt from the top of the viewing platform, using a small mechanical breaker.

The stone below the asphalt is an extremely rare black limestone.

Sean and Gary (no3) have started the cleaning samples using the Doff system, which is a steam clean.

A before and after (please note that the stone on the right was still wet when this image was taken)
All samples will be cleaned using the Doff system, before it is decided what needs to be Joss cleaned.
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Last updated:
29 November, 2008