At 21:18 02/02/06, Iain Wright wrote:
>Silver in lead used for construction, in particular for roofing, is
>advantageous as it gives the lead better wearing qualities.
Iain,
How much silver? A silver content of up to 8-10 ozs per ton would not
be unusual; beyond that and it was worth recovering by cupellation
alone in the early modern period.
I'd be interested to know who is still casting lead webs on sand.
Peter
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Dr Peter Claughton,
Blaenpant Morfil, nr. Rosebush, Clynderwen, Pembrokeshire, Wales SA66 7RE.
Tel. +44 (0)1437 532578; Fax. +44 (0)1437 532921; Mobile +44 (0)7831 427599
Hon. University Fellow
School of Humanities and Social Sciences (Centre for South Western
Historical Studies)
University of Exeter
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