Parliamentary bollards by College Green...
Removable bollards...
We are at the junction of Great College Street/Abingdon Street SW1 and on the paved area of College Green which is generally used by the media when reporting from outside of the Palace of Westminster/Houses of Parliament.
The pair of bollards are a basic design and similar to the bog standard Westminster design but they have a square base and therefore smaller and narrower than that usual design.
At the base of these bollards we have a plate with an emblem of a 'Portcullis' (with screw). The emblem of both Houses of Parliament is the 'Portcullis' (without screw). I believe these bollards are in fact temporary eg they can be removed to allow media/vehicle access to the green on state occasions and matters of great importance to our nation.
If we take a close look at the picture below you may notice that the screw in the middle of the base plate could have been turned a further 45 degrees and this would have brought the slot of the screw head into line with the middle upright of the portcullis...
Portcullis with screw...
Bollards of London...