Thank you JayT!
Looking at the writing, to me it seems like it says 'TARALLE'. I don't seem to be able to take a sharper picture as it's so small. It's on the actual cup.
Now looking around the stemp of the chalice, I can see another lozenge shaped mark, which is just too small to read. It seems like it's the same as the one on the cup.
Now on the bottom of the chalice there is something what might be a mark but I can't see anything particular in it. Also there is a number 2101 below another lozenge shaped logo. I can't see anything in it so I wonder whether it could have just faded.
![Image](http://s9.postimg.org/5d7j69tiz/IMG_1977.jpg)