Seems like a private document that shouldn’t be allowed to be sold unless the seller can establish Sadat gave it to someone and said it was okay to sell it.

I get that’s he is (was) a public figure but that’s still a private document. I’d feel the same way about a birth certificate or medical records or an old driver’s license or whatever.

Seems like the only way it could come into someone other than the family’s possession is through nefarious means or accidental loss.