Roy Harper Harmonica playing: East of the Sun

I am teaching myself harmonica (am still pretty wet behind ears - and at times not enough on lips lol!) and have been  working out Roy Harper's harmonica for East of the Sun, as I play this song on guitar. I had a look to see if there were any instructions for how to play it online so I could confirm if I was working it out correctly yet could not find anything. Does anyone know how to play it and can help me out?
Cheers,
Diane :-)