Anti-perch spikes

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Spikes near Edinburgh Castle
Spikes near Edinburgh Castle
These spikes on a window ledge in Lawnmarket, Edinburgh, look quite old. The ledge is steeply angled, so would be difficult to sit on anyway; if anything they’d make it easier actually to climb up to the window if breaking in were a concern. All I can think is that they attempt to stop people ‘perching’ on the ledge to rest for a few minutes – presumably this must have been a problem? Any other suggestions welcome!
More anti-sit devices and anti-homeless benches.


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