Pictured in 1915, from William Low, Glasgow postcard series is Blantyre Works Mills.The scene looks idyllic, but the mills had actually stopped working over 20 years earlier, and these buildings represented a legacy that left many people unemployed. They quickly fell into disrepair and were only partially used thereafter , until their eventual demolition in 2005.
You can read about when the mills stopped working and see photos of the buildings interior here