'Early' model was a triple pouch, 'later' was the quad. Not sure when the switch occurred, but the quad pouches were copied by everyone else in the WP.
Looking at the picture, I think those are both Russian quad pouches. Soviet Army Stuff (
http://www.sovietarmystuff.com/) has pretty good exemplars of a lot of Afghanistan (and Twilight)-era Soviet webbing and other odds and ends on their website, along with both older and newer items.