1881: Quetzal 10 c. gray-violet and green, used on cover, from San Jose to Bornholm Island, Denmark, France, dated Apriil 1884, cancelled by five point star cancel in purple, faint town datestamp alongside overstruck by a Calais-Paris transit, to reverse two Danish marks dated 19 May and 20 May, backflap is missing , soiled but a very rare cover to an Island in Denmark
