doi:10.7916/d8-74pb-9v81The buildings occupied by the Greenhut-Siegel Cooper Co., New York Cityephemerastill imageDepartment stores--New York (State)--New York.Greenhut-Siegel Cooper Co.Siegel, Cooper & Co.An advertisement for the buildings on both sides of Sixth Avenue between 18th and 19th Streets that are occupied by "the world's largest store."