Attribution:
Byron Company (New York, N.Y.) / Museum of the City of New York. 93.1.1.18073. https://collections.mcny.org/Collection/Opening%20of%20Siegel,%20Cooper%20Co.,%201896,%20Sixth%20Ave.%2018-19th%20Streets%20Looking%20South%20from%2019th.-2F3XC58HYHYH.html