When I am out in the streets - Holger Neuhaus
Steel

Steel

This is part of the gas tank construction: within the huge 100 meter-high tin can with a 5mm hull was a ceiling that floated on top of the gas that was a by-product of processing coal to coal bricks which burnt much better and were essential for steel making.The ceiling rested on this steel construction.

Holger NeuhausOberhausenGasometerDer Berg ruft