This set of US stamps includes various denominations from the years 1961-1970, all in mint never hinged/MNH quality. The stamps come from the United States and are a mix of different colors, making them a great addition to any collection. They are uncertified and have not been used, with the exception of a few regular issues from 1973-1974. These stamps are a must-have for any stamp collector looking to expand their collection.