Found in the floor of my basement, about 10 inches down. House was built in 1954.
No idea what this is or what the letters might be.
No idea what this is or what the letters might be.
!whatisthisthing
Let us help you identify that mysterious object you’ve found.
Currently in CHALLENGE mode: If you've got something obscure knocking about, post a picture, and let's see how we do. Please prefix such posts with "CHALLENGE:" so we know we've got a fighting chance.
No harm in spinning the bolts out I wouldn't think. If it's sewer maybe it's covering a conventional looking plug cap.