I almost literally stumbled upon these curious posts when walking back across Wanstead Flats the other week. I’m fairly certain that they were used to tether the barrage balloons that were part of the air defences based on the Flats during the Second World War. The foundations of the communications hut can still be seen in Long Wood.
london
hi my mother used to work the winches on the barrage balloons at the Wanstead flats during world war 2 have you anymore information