Santini-Conti-Galli was a UCI category 1 professional cycling team based in Reggio Emilia, Italy during the 1984 season. They rode Conti bikes bikes equipped with Galli derailleurs. The key figure was the Directeur Sportif, Bruno Reverberi. Bruno has continued to run cycling teams to this day, currently running (with his son) Bardiani-CSF, which competed in the 2019 Giro.
In terms of derailleurs, it's not a great picture, but fortunately there's a better one on the Galli advert in the same leaflet.