Oddity in Drywall Found Curing Damp Issue Damp can be a major issue in the home. Find answers to questions or post your own here.

[Musomania]

I removed some plaster and skirting boards in an area which has seen a bad damp problem and came across this curiosity... Anyone know what it is? Underneath there seems to be a block of mortar which is wet and malleable...
The area around it was dry walled but this seems to just have been plastered over.

[collectors]

Looks like a very old tap. I would gently remove a bit more plaster & investigate. But go gently.