I have for sale 5200 reclaimed 20 x 10 Welsh roofing slates. They were purchased in 2004 for a large property in Camden London. Which has since been demolished. They were purchased from the penrhyn quarry wales. Enclosed a photo which explains the quarry and the price of these slates. They were all copper nailed. And are all single holed and are all in absolute superb condition. Not a bad one amongst them. These are 1000 per cent as explained above. And a real bargain for the right job. Can do a crane off delivery. Would like 2 sell as job lot. But you are bidding on 1000