(Yesterday, 9:46 am)missedbus wrote When the X10 ran in the early and mid nineties I seem to remember it being jointly operated by Northern, Tees and United, and buses ran the X10 in one direction and the X1 in the other.
Branded Tynelink as on this United Olympian
https://encrypted-tbn0.gstatic.com/image...tA1PZn-d04&s=10