Only 11 hors-commerce impressions of Voice 2 were printed on one sheet of paper. These were printed in three successive changes, showing each possible combination of the three parts of the image: A-B-C/B-C-A/C-A-B. Thus, of the eleven prints, there therefore exist three "sets" of three prints plus two single prints. The two prints which form the complete set with this copy are currently in the collection of the Kunstmuseum, Basel, which also owns the painting Voice 2.