Yes indeed, this is the 3rd Delft Blaauw coin. Thanks for the replies so far. Having seen all the enthusiastic replies, we’ve decided to give away another coin. The first coin goes to E&Cplus3, congratulations on your good detective work. Those salt cellars were indeed one of the clues that I was hoping to see in the logs.
We havn’t decided on the second coin yet, it might go to a person who guesses the correct design of the new coin or to another good detective. Good luck and have fun.