[Bob Dobson]

Two clues might guide Gill as to whether this was Whittakers of Dowry Streeet - Was it made by C.(for Christopher) Whittaker & Co Ltd? Did it have the wording 'New Era' on it. If yes to either of these - it's ours.
I think it unluikely that there would have been another Whitakers involved in brick making,although there was a company called Thomas Whittaker , Canal foundry,. Church which was a rival founded by an unsettled member of the founding family. It went bankrupt. I will enquire as to a Ravenscar connection.