This item is not listed in the 2007 Ukraine 1992-1999 Provisional Stamps Specialized Catalog. Crimea itself is not listed in the catalog because all Russian stamps with Crimea overprints, labels pretending to represent Crimea and later "stamps" inscribed Crimea are illegally produced. Fake covers and postcards exist. This item was most probably illegally produced and distributed by an illegal stamp producer located in the United Kingdom with intent to profit from and deceive collectors. This producer created hundreds of different illegal overprints on older low value Russian stamps in the name of numerous territories, provinces , republics, ect. Until proof is provided showing this item to be authentic, it is classified as illegally produced. Butterfly overprint on SU 5k stamp dated 1988
