There is guidance on the English Heritage website on cleaning stone but it is more in relation to human vandalism and more modern (!) structures.
G
 Reply | with quote | Posted by Grendel
20th September 2006ce
18:14 |
Cleaning a stone? (whatisthat, Sep 19, 2006, 07:33)- Re: Cleaning a stone? (moss, Sep 19, 2006, 07:40)
- Re: Cleaning a stone? (Littlestone, Sep 19, 2006, 07:57)
- Re: Cleaning a stone? (Rhiannon, Sep 19, 2006, 08:06)
- Re: Cleaning a stone? (Grendel, Sep 20, 2006, 18:14)
- Re: Cleaning a stone? (nigelswift, Sep 20, 2006, 19:12)
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Cleaning a stone? (whatisthat)