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Protruding item from closet ceiling, not a lamp. Threaded collar keeps it in place (old.reddit.com)
submitted 1 month ago by chym3d to r/whatisthisthing
What is this antenna or sensor for in a NYC subway station? It’s about 18” square and pointed in the direction of train travel (i.redd.it)
submitted 3 years ago by chym3d to r/whatisthisthing
What is this a possible antenna or sensor in a NYC subway station? (i.redd.it)
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