A very interesting set of BIAL photos on their facebook page reveals one of a 1990s departures board with various airline codes. I think I have worked out the majority of them (please feel free to check) :
BA, BD, UK (air UK), BY, KL (KLM), SHL (BA shuttle to LHR) but am getting nowhere with these two:
GX to Newcastle
VB to Birmingham
Can anyone help?