| Author | The Technology of Slate |
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carnkie Joined: 07/09/2007 Location: camborne, cornwall View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
The Technology of Slate
Posted: 08/06/2011 18:26:24 Reply | Quote I realise I'm entering granny and eggs territory here but if anyone is interested there is a rather lengthy document on the above issued by the American Bureau of Mines in 1922. It can be found here. [link] -- The past is a foreign country: they do things differently there. IP: 89.241.97.207 |
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Gwyn Joined: 23/10/2007 Location: Bethesda. View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
The Technology of Slate
Posted: 09/06/2011 19:25:51 Reply | Quote Thanks for that Carnkie. At a quick perusal it looks very interesting and informative. Cheers. |
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Teigl Joined: 31/05/2010 Location: Vale of Ffestiniog View Profile View Posts View Personal Album View Personal Files View all Photos Send Private Message |
The Technology of Slate
Posted: 10/06/2011 18:46:17 Reply | Quote Really interesting, thanks for posting that link. |