Royal Barum Ware : C H Brannam Ltd

I am hoping that someone can help with any information regarding this vase.

It is a hyacinth vase that features the Royal Barum Ware backstamp, but we are completely at a loss as to the date it was produced, the designer's name, etc. It would be so helpful if there were any catalogues to assist us, but we have already tried the museum (of Barnstaple & North Devon) three times without success.

Any help you can provide would be most welcome. Two photos are included that may help.

My gut feeling is that it is not very old but I am not an expert in Brannam wares.

I think it might well be the backstamp that is currently used so my guess is that it is no older than 1980.

Many thanks for your input. My own thoughts are something along those lines, but it's a pity the museum cannot confirm one way or the other.

Not sure why the post ended up in 'ID' when that's not the point of the question, but hopefully it can be moved back to the British Pottery forum?