UK traffic sign:  Entrance to pedestrian subway (TSRGDNO 814); This is a deprecated design or diagram, reconstructed from anlaysis of the 1981 Schedules, and the 2002 era working drawings.;
This diagram is based on material held by the UK National Archives at the source noted. ; [1]; and  [2] namely: The Alphabet Working Drawings here [3]- Redrawn
UK Government;  R Vectorization:  ShakespeareFan00