"One of the finds from the former room  consisted of fragments of a pierced lattice of alabaster which presumably filled the windows or ventilators at the top of the wall. Perforated screens with geometric patterns have been met with before in Kushan and Gupta buildings. It is now patent that perforated lattices were known and employed in the Indus valley in the prehistoric period," (Marshall, Mohenjo-daro, Vol. 1, 1931, p. 219). See also An Indus House #1 and An Indus House #2.
Posts about ancient Indus Valley Civilization homes and houses.
The great bath at Mohenjo-daro at dawn and in context. Surrounded by a brick colonnade, it measures approximately 12 meters north-south and 7 meters wide, with a maximum depth of 2.4 meters. In the background is a massive brick structure with narrow passages that was first identified as a hammam or hot-air bath, and later as the state "granary," but this is not certain. See also The Great Bath of Mohanjo-daro B.
Drawing of the Interior of Hall 76, House XIII, VS Area [of Mohenjo-daro], one of 28 rooms in a well-preserved building. "There is nothing that we know of in prehistoric Egypt or Mesopotamia or anywhere else in western Asia to compare with the well-built baths and commodious houses of the citizens of Mohenjodaro" wrote John Marshall. "One of the finds from this [room] consisted of fragments of a pierced lattice of alabaster which presumably filled the windows or ventilators at the top of the wall" (Marshall, Mohenjo-daro Vol. 1, pgs. vi, 219). See also An Indus House #1 and An Indus House #3.
The pre-Indus civilization or so-called Ravi phase around 3000 BCE at Harappa yielded hand-formed mudbricks. Here, we can see the bricks very obviously lack uniformity in size and shape. There is a remarkable difference between these bricks and those from later periods such as those seen in the Mohenjo-daro Well and Platform. Other artifacts from this period include Ravi Phase Jewelry and the Pedestal Vessel.
"House 13 in the VS Area [of Mohenjo-daro] has a more elaborate plan . . . On its ground floor are four fair-sized courts, ten smaller rooms, three staircases, a porter's lodge, and a well-chamber. The front is towards First Street, and here there are three entrances side by side, the principal one of which is plainly the middle, since this is the only one provided with a porter's lodge.