This 17 plate was in the Tamshill Tunnel northwards from former Maryhill [Barracks] Station to Possil Station, Glasgow. They were a distance of 1 chain apart, showing the distance through the tunnel to assist rail staff. Other signs seen were 7, 14 and 21.
Location: Tamshill Tunnel
Photographer: Alistair MacKenzie
Contact photographer: Alistair MacKenzie
Image number: 19786