Two sets of triple hung windows along the north side of the house. By repeating the window pattern and creating one continuous curtain and valance, this architectural feature helps to open up the space dramatically, connecting the Dining Room and the Living Room.
The double hung windows are particularly useful for ventilation. As shown here, the upper sash can be pulled down to allow hotter air to escape. When the lower sash is raised it creates a natural convection and help to bring fresh air into the house without any need for mechanical equipment, fans, ductwork, etc.
project: Armstrong Residence II, 1938.
location: Oakland, Missouri.
condition: somewhat modified.
architect: Harris Armstrong.
For more on Saint Louis modern architect Harris Armstrong, check my blog architectural ruminations.
Photograph courtesy of the Harris Armstrong Archives, Special Collections, Washington University in Saint Louis.