*
Ran across something I’ve never seen before: old house (circa 1920) NW Ohio, terra cotta block foundation. Had “Plaster block” between the 2 cellar rooms and under the stair stringer. Poked it and it seemed like plaster. One or 2 images attached (don’t know yet what the site will let me do. One shows it head-on, painted silver, the other from an angle.

These are big files (350 KB – I’ve tried making ’em smaller but everything I’ve tried expands the file size)

Anuone seen or heard of this stuff before?

Bob