Re: 777?
Dan-Air comets anyone?
They were regulars into Cardiff well into the 1970s - I've recently scanned a few old photographs of my dad's which prove it :-)
At least, I think it's Cardiff. Mostly looks like Cardiff, but being dated 1976 I don't really remember, some of it doesn't look like Cardiff. Several Britannia and Aer Lingus 737s, a Transeuropa Caravelle, even a Hercules in the background in "camouflage" paint (odd) and a Dan Air Comet 4C, the "doesn't fall out of the sky" version.
There's a Comet 1 at Cosford. James May's "Airfix" Spitfire is there too. Well worth a (free, apart from the car park) visit with some extremely well-displayed aircraft. My favourite is probably the Lightning - hung vertically so you can stand underneath and look up the pipes.
M.