A footpath sign.

This footpath starts from the edge of a country lane and the wording is 'Public Footpath'. As it doesn't state a destination you will need to know, by using a map, where the path actually goes.

This post and sign is made from cast concrete.

A footpath sign.
A footpath waymarker.

This is a waymarker along the route of a public footpath and, in this instance, indicates a change of direction of the path.

You may find this at a junction where the other path is not a public footpath or may be the entrance to a field.

A footpath sign.

This sign is at a junction on a public footpath and indicates optional changes in the route.

In this particular case destination names are given which is frequently not the case.