Modern Plaster Walls, Six Ways: Remodeling 101
Slaked Lime Plaster. This is what the plaster walls in your great grandparents' house were made of. Starting with wood lath, a coarse "scratch coat" (plaster mixed with shrinkage-preventing aggregates, such as horse hair) was applied followed by a "brown coat" (plaster mixed with sand), and finally a fine skim coat.
