This card is making us work.  First, we are listing it geographically twice:  once under Estonia, where it is now; and once under USSR, where it once was.  Google gives us plenty of information about Tallinna Raekoda (in Estonian), describing it as “the only intact gothic style town hall in the Northern Europe.”  We have no reason to dispute that.  The front of the card is OK.  The reverse is not.  It is unwritten, but there had been some kind of stamp that was removed, and the right side looks like it had been pasted into a book or album.  Because the front is fine, we give this Grade: 4