On October 7, 2014 an ad appeared on Craigslist in Zürich in search of “Diego” artwork. Great idea! If they do find some, it will be quite a treasure! One is not likely to find a “Diego“, a signature not used until 1965-1985. Instead search for “A.Voci” especially in Zürich.
For examples of paintings with the signature “A.Voci”, see:
For more on internationally collected artist ANTONIO DIEGO VOCI see: http://www.blurb.com/books/5419805-the-beauty-of-diego and GOOGLE: Diego Voci and see the new website for the DIEGO VOCI PROJECT: http://www.diegovociproject.com