The CZ 70 you folks are talking about (and the picture shows) is the Czech CZ 70, Ceska Zbrojovka, from Prague. The Yugo CZ 70 has a slide that more resembles a 1911 slide. Hopefully an image (not very high quality, but the only one I could find) appears below. If not go to Marstar's site
http://www.marstar.ca/crvzas67s.htm