Historical 1845 British envelope from the Stamp & Tax Office in Oxford, addressed "On Her Majesty's Service" Official Correspondence: The cover is marked "On Her Majesty's Service" and originated from the "Stamp & Tax Office" in Oxford. Postal Marking: It features a red "PAID" crowned postmark dated September 19, 1845.Historical Context: Such covers are considered postal history and often pre-date or coincide with early official Queen Victoria postal issues.
