This rather unusual item has popped up on eBay this month.
It’s amazing it has survived all these years.
This is a genuine original prop in great condition - no tears etc
Edit: the word 'book' in the title should say 'Bok' it's a predictive typo
Please see last picture uploaded - we took the mask off the polystyrene stand to see the inside. I'm guessing this was to fit the head