First of all, these are "Importer's Labels" and are not always accurate. In fact, many unethical dealers are putting "Made in Iran" labels on the back, when in fact, they were made in Pakistan. In fact, there was a local dealer who only sold machine woven rugs, but sold them as Persian.
Secondly, these are not always on the rug. To learn where a rug is made, teach yourself to rely on other things like quality of wool, fringe, dyes used, knot type, etc.
Jose Smith