Denmark, 1855, 2sk blue. In combination with 1863, 16sk violet, horizontal pair by "4" numeral ring cancels on 1864 folded letter sheet to London, England paying the raised 34sk rate raised from 30sk due to the war against Prussia, matching "Aalborg, 18/2" origin cds and red "London, Fe 25, 64" arrival cds, Hamburg transit postmarks on reverse, Very Fine, a rare extra wartime surcharge rate to England, with less than 10 recorded usages; with 2004 L. Nielsen and 1988 Dr. Debo certificates. Scott No. 3+10. Facit No. 3+10  Estimate $2,500 - 3,500. $0 (Image)