CITY PLANS ITS COSTLIEST SUBWAY; In a Short Two Miles Under Sixth Avenue the Engineers Will Encounter Many Intricate Problems – The New York Times February 9, 2026 by jlamprecht https://web.archive.org/web/20220711174824/https://www.nytimes.com/1935/05/05/archives/city-plans-its-costliest-subway-in-a-short-two-miles-under-sixth.html
