Registered letter front from Christiansted 16.5.1906 to Aarhus, Denmark. St. Thomas harbour 1 Franc, 2 and 5 Francs together with King Christian IX 5, 10, 20, 25, 40 and 50 BIT, complete sets on cover. Cancelled with cds CHRISTIANSTED 16/5 1906, registration mark 'Dansk Vestindien / R / No. 177 (6284)' and boxed 'Anbefalet'. ONLY THREE RECORDED with complete set of the King Christian IX and St. Thomas Harbour view on cover.