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Keywords: Stannard Rock Light construction technique ppmsca.09355.jpg en Stannard's Rock light house Lake Superior; Method of drilling for range posts and ringbolts Illus in Report of the U S Light-House Board 1882 pl 9 LOC-image ppmsca 09355 United States Lighthouse Board 1882 No known restrictions on publication Stannard Rock Light Annual Report of the United States Lighthouse Board 1882 Drilling PD-USGov |