Lot 6156
1944, 1.5., Christian X. 1kr. tied by cds. "KOBENHAVN -1.5.44" to airmail cover via New York to Vaag, with German censor mark "Ab" alongside, and US censor stip "5907" and upon arrival in England with censor "PC 905409" closing strip, a rare letter of the very short period when the British and the Americans both censored the letters