Where will you see these red and white markers? - Theory Test
Driver Location Signs - Roader's Digest: The SABRE Wiki
Motorway marker post showing direction to nearest emergency phone Stock Photo - Alamy
Driver location sign - Wikipedia
Different Types of Motorway Signs | Resources | PassMeFast
North West Motorway Police on X: "Marker posts are blue & white metal shields on motorway side. Eg Marker post 280.4A is 280.4km north of start of M6.. http://t.co/bJJes1UaAi" / X
Metric signs on UK roads – UK Metric Association
Count Down Marker 300 yds Post Mounted Sign - Diagram 823 R2/RA2 (Face Only)