Road signs for C-Roads are something of a rarity as they shouldn’t really exist. Nothing below a B-road is supposed to be named on signposts.
Generally if they exist its probably an administrative error, and here’s a local example.
C1268 Sign, Upleatham
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The road is actually the B1268 so I would think it’s an administrative error.
There are other C road signs around the country, down here in Norfolk they often put them on the yellow temporary road closure signs but as the C numbers don’t appear on maps you often don’t know what road the closure is on!!
Russ is correct. See SABRE website http://www.sabre-roads.org.uk/wiki/index.php?title=B1268
The SABRE (Society of British Road Enthusiasts) is an anorak anorak’s site, dedicated to exploring the ins and outs of numbered UK roads from the M1 down to the humblest country lane……….
i believe the c roads are numbered according to area and not nationally.i was involved in and accident recently on the c108 smeathorns road in castleton,north yorkshire.it was listed as the c108 on redcar and cleveland councils winter gritting schedule