It looks as though this commercial block in Sharpsburg was built in two stages. The date stone would have been in the center of the original building, making a neatly symmetrical composition; it might have had some eruption of ornament behind it where the blank spot is in the cornice. Later, the building was extended by two bays to the right, nearly identical in design, but breaking the symmetry, and without the terra-cotta ornaments between the second and third floors. It also appears that the bricks are very slightly different in color, perhaps from a different source.
The date stone would have told us when the original building was put up, but at some point a new owner decided to obliterate the evidence of the old one.
At least the terra-cotta decorations remain.
Sharpsburg has a shortage of street names. There is Main Street, and North Main Street, and South Main Street; and North Canal Street and South Canal Street and Short Canal Street. The town is crammed into a tiny narrow strip along the Allegheny, but it is still easy to get lost.