I imagine it looked something like this.
There has been a lot more written about this song. A great article is by Johnny Black and can be found here.
As for the other songs, "Clampdown" is another one of my favorites and this captures all the noise and attitude well. This is the kind of song that doesn't suffer from being a poor recording. It doesn't matter. It's punk. The songs intro guitars just get all riled up and ready to dance.
A song like "London Calling" however to me does suffer. It's just my opinion of course, but to me that song's studio recording is so perfect and so iconic, that it is hard for me to hear any other version and be pleased. Such is the case here. It's okay live, but I love the original.
"Guns Of Brixton" is also just okay here.
So this one's a mixed bag, but it's a mixed bag of The Clash. Not bad if you ask me. So if you were too you to ever see The Clash live or just someone missed out put these songs on, close your eyes and imagine yourself in the way-back machine to a night in 1980 where The Clash rocked the house.
01 London Calling.m4a
02 Train In Vain.m4a
03 Guns Of Brixton.m4a