Thanks to Tonny Steenhagen for these, which he came across during his research for Deep Purple.
Videos keep appearing and this is a rare one, from 1968 with Keith on lead vocals. It captures the sense of fun (and danger) that the first line up had.
An ageing Nice fan has found his old scrapbooks and I hope to be meeting up and digitising them at some point. He says the mice have gnawed at some of his tickets 😉