Original vintage architecture trade magazine ad for THE ATLAS PORTLAND CEMENT COMPANY of New York City, NY.  Atlas White is being used for laying and backing the granite in the construction of this building, because it is a true Portland Cement, white in color and absolutely nonstaining. Pictured is the Municipal Office Building, City of New York.  McKim, Meade & White Architects.  Thompson-Starrett Company Builders.  Old 1912 granite construction materials advertisement.  Would display beautifully matted and framed.