| 1. |  | American Optical Company main entrance, Mechanic Street, Southbridge | American Optical Company; American Optical Corporation--Southbridge (Mass.)--History; Optical industry--Massachusetts--Southbridge; Historic buildings--New England | The formal entrance to the American Optical Company headquarters, in Southbridge, Massachusetts. A detailed view of the craftsmanship used to construct a magnificent keystone fanlight and supporting columnar... |
