bedding stone
A flat marble slab used by masons to check the flatness of rubbed bricks.
A putty, 1 that is placed in the rabbet of a window-opening in which the glass is bedded.
A small spot of plaster built out to the face of a finished wall or ceiling; serves as a screed
The plaster coat which receives aggregate or other decorative material, impinged or embedded in its surface before it sets.