That is a perfectly legitimate query. I would expect to find all manner of historical documents. Further, it does not matter what a document says. Claiming to b

That is a perfectly legitimate query. I would expect to find all manner of historical documents. Further, it does not matter what a document says. Claiming to be not for public release doesn't make it a crime to release it. The only possible exception here is for national secrets, but even then many exceptions have been made.