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Nah, from a chap in Cumbria according to his FB profile. His name isn't Dave and he said he had it custom made by a Chinese builder.
It looks near identical to one of these but its drilled for a dynamo too.
edit - I realise though that I probably won't be able to find out exactly who made it unless the seller checks his emails for the invoice - I've asked him.
Just that logo on the axle looked familiar but I cant place it.
It looks a lot like the one that was in my workshop, but there's a chance Dave chucked it on eBay without me noticing.