Getting all my 77's and 777's mixed up :s

Only other services I remember that Birtley lost was the 26 Barley Mow-Birtley-Low Fell-Pilgrim St

The 721 which went from Newcastle to Chester Le Street but around the houses in Birtley and via Wrekenton and Old Durham Road. That's never been replaced

Also Birtley had the 23 which went from Malone Gardens - Vigo Bridge, the number still exists as a Nexus service but on a completely different route