This product is a set of five vintage Mongolian postage stamps issued between 1961 and 1970. The stamps feature multi-colored images of butterflies and were cancelled to order (CTO). They are denominated in decimal currency and were issued in China. The stamps are ungraded and uncertified. I know very little about these stamps, just that they were in my mother-in-law's possession when she died. I'm hoping a collector will be able to add them to their collection.