Notes:
Notes:
The former Rincon Annex United States Post Office is a rare Bay area example of so-called WPA classical moderne style. Gilbert Stanley Underwood, architect, George Hale, chief engineer, and the George A. Fuller Construction Co. were responsible for the mail and parcel post facility, which officially opened 2ó October 1940. The reinforced concrete structure - three floors in height, but designed for vertical expansion - features a black granite base, decorative aluminum grillework, and a notable interior public lobby space, 208 long below a 25 ceiling. The lobby has terrazzo floors, ceramic tile wall surfaces, and 27 mural panels painted by Anton Refregier. The murals, illustrating in a controversial manner the history of San Francisco, were added to the post office from 1946 to 1948. Compared with the lobby, the non-public areas of the structure were plain and utilitarian. The Postal Department during the 1960s and 1970s incorporated automated machinery inside the facility, but the exterior remained largely unaltered except for an upgraded rear loading area. Due to the inefficiency of multi-story vertical movement and the advent of new mail handling techniques, the Post Office moved mail-sorting operations to a new location in 1983-84, and Rincon Annex was closed. I n 1985, the United States Postal Service entered into a sixty-five year lease of the property with the developer."