NEW YORK CITY - Rockefeller Center - LINEN: Rockefeller Center is a complex of 19 commercial buildings covering 22 acres (89,000 m2) between 48th and 51st streets in New York City, United States. Built by the Rockefeller family, it is located in the center of Midtown Manhattan, spanning the area between Fifth Avenue and Sixth Avenue. It was declared a National Historic Landmark in 1987. Rockefeller Center was named after John D. Rockefeller, Jr., who leased the space from Columbia University in 1928 and developed it beginning in 1930. It was the largest private building project ever undertaken in modern times. Construction of the 14 buildings in the Art Deco style (without the original opera house proposal) began on May 17, 1930, and completed in 1939. Principal builder and "managing agent" for the massive project was John R. Todd. Principal architect was Raymond Hood, working with and leading three architectural firms on a team that included a young Wallace Harrison, later to become the family's principal architect and adviser to Nelson Rockefeller. The construction of the project employed over 40,000 people. This Linen Era (1930-45) postcard is in good condition. Acaia Card Company, New York 7, NY. No. 79612. No. 158.