dago dazzler

noun1

1. •
   (slang, offensive) An impressive-looking document used to identify the bearer as being affiliated with some official institution, typically a university or college, with the purpose of impressing low-level bureaucrats, usually of a foreign nation.

   • I also took off well supplied with letters of introduction to medieval scholars and with what were then called "dago dazzlers,” formal letters to which the Harvard seal was affixed, […] — 2017