Anonymous ID: 85a708 Dec. 27, 2020, 2:48 p.m. No.12199978   🗄️.is 🔗kun

>>12199858

Old switching stations generated a lot of heat and required a venting, you will often see louvered vents at ground levels and then additional exhaust vents near the top of the building. Another trade mark is the angle entrance at the bottom, this is very common in AT&T buildings of the period. Another tell is the amount of compressors and generators on the roof top.