Mine arrived today too ! No tax on mine, fortuitously (and it was just the one set and a couple of singles).
Quite right that they tax the Gnomes of Zurich
My Rich set is #2753 by the way. So likely the number of 'real' Mosaics of this one was less than 2800 and the number of 'Euro' sets probably comparable, I guess. Around 5,000 out of a 10,000 'theoretical' run?