On the face of it, this looks as if it's going to be issued via the NSI's "Blackpool" register.
Reuters, amongsts other, suggest we should get more information on Wednesday. I can't help but think War Stock, maybe too cynical for my own good, but I'll be having a look at it either way. Maybe worth checking CS's about auction function. Even the Blackpool list fell under the control of the now defunt BofE registrars, so you never know.