There were two choices when shipping dimension granite by stone sloop (or rail).
If the stone was unfinished, the pieces were in surface contact with one another, and any dressing would take place at the project wharf or destination. The dressing crews often moved from job to job. I’ve come across newspaper accounts of Rockport Granite stone being used in Chicago, but being dressed by a crew from the Quincy Granite Company.
If the stone was dressed here on Cape Ann, then the pieces would be wooden boxed to protect the edges and dressings.
The image below is Cut Stone bound for the “Manhattan Bridge No.3” New York. The stone is poised at the cutting shed of Bay View.