Parthemores in Poland

So the history department at UAM required Eric’s diploma from Missouri in order to certify it.  Evidently an official transcript and notarized letter were insufficient. 

Since we didn't bring it with us, he contacted the university in Missouri several months ago and arranged to have one sent to the university here. 

Date of postmark: 7 DEC 2009

Date received:  18 FEB 2010

There was a stamp on it to help explain the delay:

Here’s a close up:

“Missent to Iran”

What?!?

Why did it make a wrong turn to Iran, of all countries, and why does someone even have a stamp that says that?  Is this a common problem?