Hi There.  I have The Who Quadrophenia double album signed in the centrefold by all 4 members plus their quirky anecdotes, referencing their time spent in Montreal and the infamous hotel room trashing where they were subsequently arrested.  Keith Moon says "Busted in '73 by the RCMP for Whoing about.  Loved Montreal" . And Roger Daltrey says "Tommy The Who kid got off at Montreal to speak", etc etc.

Plus a comment by someone who signs it as "Svengali and the Natural Blondes".  No idea who that might be?  

I love this piece because I think there's a mystery here. What's the story, were they all partying together after the incident and they signed it for one of the partygoers?

At the very least, it's a fun and interesting piece of music history.  However, I don't know if it's authentic.  Picked it up at a vinyl flea market, for .50 cents!  Guy didn't know what he had..I bargained him down from a buck.  Lol

Have included pics.  Can anyone help authenticate?

Thanks

Spry One