Mutual of New York built the structure in 1950 for its corporate headquarters and hired Shreve, Lamb and Harmon as architects. It left the building after being acquired by AXA.[2] The building was completely renovated in 2007.[1] Blackstone bought the building in 2014[3] and took out a $200 million loan. In 2024, Yellowstone Real Estate bought the building's loan and considered converting the structure to residential use.[4][5]
The MONY sign was removed by Vornado in December 2007, and replaced with "1740" to reflect its street address. The numerals, 8+1⁄2 feet (2.6 meters) tall and in Futura typeface, are illuminated at night by light-emitting diodes.[7]
The Weather Star
Perched on the roof is the Weather Star, a 150-foot (46 m) tower of lights topped with a star-shaped weather beacon which was built by Artkraft Strauss. The star was green if the following day's weather forecast was fair, orange for cloudy, flashing orange for rain, and flashing white for snow. The direction the lights on the tower moved depended on whether the temperatures were expected to rise or fall; absence of movement meant no change. The Weather Star is still operable, but is no longer used for meteorological forecasting purposes. An electronic digital board with four sides that has always shown the time and temperature is located at the base of the tower.[7]