One British 1d stamps on envelope, cancelled "London My 2 12" and sent to St. Croix. One 30 BIT Postage Due stamp at reverse together with "St. Thomas 18.5.1912" and arrival postmark "Frederiksted 19.5.1912". Cert. C.Aa. Møller.

One British 1d stamps on envelope, cancelled "London My 2 12" and sent to St. Croix. One 30 BIT Postage Due stamp at reverse together with "St. Thomas 18.5.1912" and arrival postmark "Frederiksted 19.5.1912". Cert. C.Aa. Møller.