Designed by Michelangelo Pistoletto for the coffee brand Illy: a 2-person porcelain espresso set, consisting of two cups, two saucers 

Each cup is individually numbered. Performed by Rosenthal.

Good condition. 

Michelangelo Pistoletto (born 23 June 1933) is an Italian painter, action and object artist, and art theorist. Pistoletto is acknowledged as one of the main representatives of the Italian  Arte Provera. 

The saucers measure 4 3/4" diameter and the cups measure 2" tall.