Hello everyone tonight

Thanks ken and others for coming on board with constructive information it helps to keep things in prospective using a varied recipe of mixtures and methods from around the globe.

Don--you mentioned the finishing of the wall surface, according to my research the last or third coat, would be just the putty lime trowelled on with a steel trowel, maybe others have additional information on other techniques.

The Grist mill that we reconstructed at UCV had of course stone walls, and on the interior surface the final layer was not trowelled but floated with a wood float, and left a wee bit on the rough side, and not very level, the mixture was just sand and lime 3 to 1.