Note Uxxxx1652xxx has been entered 3 times. This is a 10 Euro note from 2014. The printer code is Uxxxxx. This means that the note was printed at Banque de France (France - Chamalières). Users who have entered the note are:
Carrefour supermarket, 43°07'32.0"N 6°05'34.2"E (i think this one is from a german-speaking tourist who paid with it right before me so i got it, he was entering a german car with a KL number plate, so i am pretty sure this one is from the region of Kaiserslautern, Germany)