DescriptionMine at Leadfield.JPG Deutsch: Türstockausbau in Kalifornien. English: Timber roof support in californian mine. Date April 2003 Source Own work...
2.0 Creative Commons Attribution 2.0 truetrue 24 March 2018 English operator: Flickr described at URL: https://www.flickr.com/photos/eflon/2397737262...
