Fixed to Street Furniture

Highland Council - [Requirements + Shopfront Design Guide]
Signs must not be fixed to street furniture.
Signs must only be displayed during the opening hours of the business.

For examples of signs placed near or over bollards see Not at building Line.

The examples here are typically signs physically remote from the business
  and usually attached to a pole or railings by a cable lock.
By their nature, these signs are unattended and remain on display at all times
  and not only during the opening hours of the business.

• Happy Tours - Bridge Street - Sign
• Zoom - Sign on High Street - Takeaway in Baron talor's Street.
• Contrast - Ness Bank - Sign on riverside pavement.
• ??? - Ness Walk / Ardross Street - Sign