I saw some that did not match, but maybe he's found some that do. On the other hand, there are a whole lot of problems with those documents beyond merely the superscripts.
He got that information from the same people who gave him the memo in the first place.
I think this is it:
http://users.cis.net/coldfeet/doc10.gif
I've seen one doc and it's pretty suspicious.
There are several "th"'s all normal. But one particulary blurred one on the same document shows a small "th", but it looks to me like it's been whited out and the small "th" written in.
Pretty weird that it's the only "th" on the page and is different from all the other "th"s on the page.