click to enlarge
I was intrigued by this and wondered if I might one day come across a photograph of them at Paddington. Well, I may have found it. The fine picture above, from the Science and Society Picture Library (ref 10442590) shows Paddington Goods Yard in 1925. It shows a GWR A.E.C. delivery lorry laden with Nestle's baby milk standing on what looks like acres of these stones.
Of course it is very unlikely that our actual stones are those actual stones - but they could have been.
Here, as a reminder is a picture from this Blog dated 1 November 2011 showing the then newly laid setts here at Settle:
Thank you Isambard.