The launch of the World Unicorn at Wallsend (1973)

Thanks to Made in Newcastle for tweeting the link to this remarkable video. The World Unicorn was launched from Swan Hunter's Wallsend shipyard in 1973.

Those terraced streets have long gone. They may even be the same ones you can see standing empty in a video of the excavations to reveal Segedunum, the Roman fort.

And as the commenter there says, you have to respect archaeology in flares. But then it was shot in 1975.