This stone smoke house, once forgotten, has been renewed.  Most of the original rough plaster had long ago worn free from the rubble stone walls.  Because of its location, on the banks of the Delaware River, sand is everywhere.  We used local sands that closely resembled that of the original mortar (but with less silt) and we mixed this with larger aggregate from a local sand quarry. We created a repointing mortar that would fill the large mortar joints since the walls were not going to be re-parged with lime plaster.  In the restoration process we removed a lot of very loose lime plaster, stabilized the wall around the door and then repointed around the old but well bonded plaster.  Additionally, we added many small stone to fill large gaps in the original walls.