Here are scans of the front and back of the cover:
This is an obligatory tax/postal tax stamp.
Thanks Nigel! I had not thought to check the back of the book.
I found this in a fifty cent box at a stamp show last weekend. The back of the cover has a Cinderella written in what I can only assume is Persian. Does anyone happen to know what it says?
re: Iranian Postal Tax Stamp Tied on Cover