oldMohawk
gone but not forgotten
Yes, in the pic in #5368 near the top of the building the slot can be seen in the wall and a length of the rectangular pipe on the pavement leans against the wall. I presume the landlord owns that nice car ....That looks like rectangular cast iron rainwater downpipe to me, let into the brickwork. Often seen of rainwater pipe adjacent to pavements. It most likely ran under the blue brick paving’s in a cast iron duct to the kerb.