(16 Dec 2013, 6:59 pm)anvil1984 wrote Yeah it was definitely when the 142s got the green / grey high backs I think under Northern Spirit. Definitely pre Northern, It was when Nexus sponsored a lot of the North East services pre Metro
Northern Spirit came in mid-late 90's and it was a few years after then, when the Metro was extended.
Nexus came up with their pipework logo around that period too.
So that would all tie in.