I've seen the number of 90 by the Italians and another 30 finished on the production line by the Germans after the Italians switched sides ., on at least 3 web sites . I wonder if the 220 number includes the Semovente types built on this vehicle model ? . It seems the Germans took over the tanks when Italy surrendered , as they had 80 odd in Yugoslavia , mostly in SS anti partizan units . Pictures of 15/42s labelled as in in North Africa are really hard to decide about, as usually the side door on either side is not in view. The pictures that do show the right side door all seem to be tanks in use by the Germans .