IMAGE CREDITS

Image Credits

Remote images are loaded from Wikimedia Commons via Special:Redirect. Local SVG fallbacks are included for resilience.

Surfaces looking down at manhole cover metal pattern.JPG

Author/source: Wikimedia Commons contributor · License/source note: Commons file page · https://commons.wikimedia.org/wiki/File:Surfaces_looking_down_at_manhole_cover_metal_pattern.JPG

Round cast iron Manhole cover.jpg

Author/source: Flickr source / Wikimedia Commons · License/source note: Creative Commons · https://commons.wikimedia.org/wiki/File:Round_cast_iron_Manhole_cover.jpg

Manhole cover with chequer pattern.jpg

Author/source: Wikimedia Commons contributor · License/source note: Commons file page · https://commons.wikimedia.org/wiki/File:Manhole_cover_with_chequer_pattern.jpg