Interesting one.
Most of this is a performance of "The Universal" by the Small Faces, but the clip concludes (beginning at 1.35) with young Danny Kirwan saying cheerio to his mum and heading out into London with his guitar, bound for Boilerhouse or Fleetwood Mac.
Dunno where this comes from and by the looks of it, neither does the chap who posted it.
http://www.youtube.com/watch?v=sSFcrN6nkqU