As you can see this was comissioned BEFORE Sabbath were replaced by Ozzy. The tickets went to press with Black Sabbath still on the bill so they aren’t rare. THIS is!
Promoter John Curd famoulsy said of Sabbath: “… the next time they appear in England, it will be in court”.
The full story of the day including numerous photos can be found here http://www.ukrockfestivals.com/heavy-metal-holocaust.html
which is where i found that quote – and plenty more besides!