Danish West Indies. (United States). 1918. Registered envelope addressed to Denmark bearing United States SG 468, 1c green and SG 472, 5c blue (strip of four) tied by framed 'Charlotte Antlie/ St. Thomas' hand-stamp in violet (struck 3 times) with hand-struck 'Registered', routed via New York with oval New York/ Rec'd transit '25/2' with 'Opened By Censor/ (2711.) Wt. W2318/ 55. 20m. 12/17. P.P. Ltd.' and Kopenhavn arrival '21st Avril' on reverse.