This image shows the NBC Radio City radio and television center at the corner of Sunset and Vine in Hollywood, California.
The description states:
N. B. C. RADIO CITY — SUNSET AND VINE
Located in the heart of Hollywood this is headquarters for many outstanding programs and the stars of radio.
–The building was constructed in 1938 and demolished in 1964 when operations were moved to Burbank, also nearby to Los Angeles.
This postcard was used and is dated 13 July 1956.