I write a lot about history, and as part of that work I occasionally file FOIA requests. There was one occasion where the FBI's response contained dozens of pages that were typewritten memos consisting of:

To: [recipient name]

From: [sender name]

Date: [date]

[Multiple paragraphs of redacted text]

...and that was basically it. It was funny, but frustrating (funstrating?).

Example: https://www.damninteresting.com/temp/memo.jpg