Option A
fire up the deloran, selected 2000ish & pop into your local branch of CSD professional -
Option B-
New old stock from fleabay (lol)
Option C-
Rip it out & stamp on it & put some new controls in
Mondays job....
calling all Tann fans-
https://www.ebay.co.uk/itm/Tann-Fire-Alarm-combined-call-point-sounders-flashing-light-etc/264276147807?hash=item3d8815fe5f:g:oNYAAOSwRNxcgmSS