NEW YORK CITY - Hotel Plymouth - ADVERTISING:  The 18-floor Hotel Plymouth (137-143 West 49th Street) was built by Architect Hyman Isaac Feldman in 1929.  It often hosted stars from nearby Radio City Music Hall. The Plymouth is not standing today to make way for some International Style architectural structures owned by Rockefeller Center.  This Photochromatic advertising postcard, mailed in 1948, shows the hotel with a smaller superimposed Radio City image.  The card is in good condition.  Lumitone Photography.  New York.