Its minimum height was 20ft6 in, and it was equipped with four steel shutter fire curtains to isolate any fires in the hangar.

Blackout curtains in front of the steel shutters inside each window had caught fire from the building opposite.

Luckily, our shop front has big steel shutters so nobody ever sees what we get up to.

Each steel shutter weighed one-half a ton.

The shops have been ransacked, their steel shutters ripped away.