Bracco Spa, External Relations Department, Cultural Initiatives: internal communications with the Executive Board, correspondence, work programme, estimates, offers, concerning the Christmas Concert, dedicated to the “Parents Association “Fondazione pro juventute Don Gnocchi”, of the Symphonieorchester der Wiener Volksoper conducted by Michael Dittrich, held at the Milan Conservatory on 12 December 1993; programme, press clippings.