...or at least not quite handwritten, and certainly not a book. A few weeks ago I bought a small six-ring binder and this morning I pulled out the pages it came with to rearrange them. Flipping through, something caught my eye. One of the looseleaf pages was stamped. I'm posting partially because I can't read it and am curious to get a translation. You can't really see from the scan, but it's close to the holes on the left edge, and in fact a little bit of the lower small character is bitten off by the fourth hole.
I should go through my old math books and see if I can find other things to post. This is a great idea for a community so it's sad it's been dormant so long (then again, you can't force discovery).