67 or 68???

[FESTIVAL78]

Not many make mention of this but the 68 rs and the 67 rs center (egg crate) grilles are different. In 67 the intersections of all the vertical and horizontal black plastic lines are perfectly flush with one another. that includes the rs light covers. In 68 the horizontal lines of both the grille and the covers was slightly higher than the vertical. this I assume was so chevy could install the chrome mylar horizontal strips onto the black plastic without attaching it to the vertical ones. I've heard mixed opinions on if that chrome was factory at all. has anyone seen a 68 rs original grille that has the thin chrome strips? I have not. also 68 is vacuum and 67 electrical. the lower rs directional lamps are not surrounded by chrome on 68.