Ozzy Osbourne logo typography

Hi people, I'm searching for the letter font (if it exists) used for the Ozzy Osbourne logo.

Comments

Looks like it started life as some form of Revue, with serious customization...

I would take a good look at some old Letraset and Chartpak catalogs.

Well, Ozzy got a lot of money and he could have a great designer for sure, well guys, thanks anyways.