It's been discussed on Pprune before but Albion was associated with British Airways Regional Division in the 1970s, i.e. the combined BEA, Northeast and Cambrian Viscount fleets. I have a vague recollection of the Leeds Bradford fleet (at least) using the Albion callsign with the last two letters of the aircraft registration, e.g. Albion Echo X-ray (G-APEX). However, I was a mere bairn at the time so I could be wrong.