Hi everyone - would be really grateful for some help/advice on this.
I have been removing a small wall/low surface in our living room. It forms part of our 1970s cornish stone fireplace built by the previous owners and extends along the length of one of our living room walls.
I've been...
Found this while demolishing wall next to our fireplace - it's from the old fireplace and been used as filling/packing material when the wall was built.