The south end of building # 17 at Norristown State Hospital in Montgomery County, Pennsylvania. Patients would be rolled out onto these open air porch areas on either the second or third floors for fresh air. The institution was originally known as the State Lunatic Hospital at Norristown. This structure dates to around 1880 and was designed by Wilson Brothers and Company. It has been abandoned since the 1960s.

Technical details:
Sakai Toyo 5x7 large format metal field camera with 4x5 film back.
90mm F5.6 Schneider Super-Angulon lens in a Copal 0 shutter.
Kodak Ektascan BR/A single-sided X-Ray film shot at ISO 100.
Exposure was 1/30 second at F32.
Developed in Rodinal/Adox Adonal 1:150 dilution for 7 minutes @ 20 degrees Celsius in Mod54 daylight developing tank.
Negative scanned with Epson V600.