This is a Police Signal Post, High Street Hull.

Nice find Wes, one of the early ones too.

Might have to track that down next time I'm up that way.

PA1 Police Post in the City of Hull.

Location: High street and Bishop Lane, Hull, HU1 1PA, UK
Geotag: 53.742879, -0.330882

Notes:
The most unique feature on this Pillar is the cast writing on the door.
All other survivors (7) have an enamel sign that says the exact same thing.