My wife and I bought a house that was built in the late 1800s' and someone had done the stairway walls and upstairs hallway with a really deep texture finish. You could take off skin if you got too close. One of my friends checked the wall for loose areas (where the plaster may have come loose...
I was lucky enough to find a village that was replacing their lights and got some lights and the traffic control cabinet with all of the necessary equipment. The school flasher was an Ebay find.
You may find that since the lot is within the city and appears to be rectangular, it may have been part of an "addition" to the city that consisted of several lots with dedicated streets and alleys. The deed to the property might contain this information. The original plat (map of the original...