A green sign with a diagram showing an exit branching off the road ahead and the following text.
Forward destinations: Berwick; upon Tweed A1 .
Exit destinations: Haddington; B6471; Aberlady; (A6137).
Junction name: OAK TREE JUNCTION.
Unmentioned on most of these signs, but there all the same, is the A199, shadowing our progress all the way to Dunbar. The A199 is the old A1, now bypassed by the modern route.