Part Two in an extremely rare series of ornate metal maps on features, is this map, which is on the gate to a student block in Tottenham Hale. The map is only in the correct orientation (i.e. eastwards to the right) when viewed from inside, so I’ve flipped the photo around so that it makes sense.
The gate/map shows the Walthamstow Reservoirs, as well as the surprisingly large amount of green space surrounding the area (which is part of the Lea Valley). The block itself is coloured in black. The dotted pattern appears to have no significance other than to add structure to the built-up areas where the road network doesn’t help.