Granite was king on Penoboscot Bay islands in the last quarter of the 1800s. After granite was quarried, it was often carved with decorations or carved into statues such as eagles. The work attracted skilled stone cutters from Italy and other European nations to carve figures in the granite for public buildings and churches.
Detail of the Penobscot Bay Maine nautical chart, 1/40,000 scale. Note how the chart not only shows depths and navigational features, but it shows much information on land, including buildings, topography, locations of stone walls, and even where there are and aren't trees. By 1876, the Rockland breakwater was protecting the great number of vessels coming and going in pursuit of the lime trade.
Barrel manufacturing, showing completed barrels in the middle of the image and headers and staves to the right of the completed barrels and on the left side of the image. Barrels like these were used for carrying lime, in addition to other cargos.