Following my post of 12th July I have found another vintage AA road sign; this time it is in the small hamlet of Cresswell Quay in western Pembrokeshire on the wall of Cresselly Arms pub's garaging.
This one says Pembroke 7, CRESSWELL, Haverfordwest 14 & 1/2, London 237 & 1/4 & safety first.
As you can it is in a stage of early rustiness adding to its character.