These are the three pieces:
This is an extreme close up of the Mark on the bottom of the infuser's base:
This is the set with the infuser assembled:
I am not 100% that the saucer goes with the infuser, in one of the pics I had taken it had a much different color cast to it, and there are no marks on it. Given the larger imprintable area, I would have exptected that the mark would have been on the bottom of that instead of the infuser.