(03 Jun 2015, 5:58 pm)MurdnunoC wrote I remember them occasionally being allocated to the 648/649's but I presumed these were from Sunderland Road not Winlaton. 
I can't remember Winlaton having any at all although they had other Atlantean variations. I certainly don't recall them being used on any other Winlaton service. 
Just to confirm we're on about the same type of bus (as this is not my strong point), they were the ones with the massive bumpers which you could probably stand on?
The help bumpers were on the ECW (big black bumpers).
My favourite was the MCW - with the 'eyes'
https://m.flickr.com/#/photos/nedbasher/5750937777/
They were the ones at Winlaton.