Los 6153
1943, 20.9., Christian X. 50ø with additional franking tied by cds. "KØBENHAVN 20.9.43" to airmail cover to Thorshavn, stopped in Germany by the censor with brown closing strip and returned with handwritten "Zurück, Bis auf weiteres nicht zustellbar. ABP" (Return, Not available until further notice) alongside. On reverse endorsed by the sender "back 4/10". The only known cover that has been returned in the 6 weeks, when the postal service was closed due to the martial law imposed by Germany
Reference: “DAKA GF 10 - Faroe Island Stamps and Postal History”
