This attractive, registered, On-His-Majesty's-Service(Posts &Telegraphs) cover(envelope has some minor stains, and wear and tear around its edges in the form of creases, and a small tear in its top and bottom, right corner; back flap is intact) was sent on June 15, 1928, from Lagos, British Nigeria, to a Mr. Charles G. Montrose, Brooklyn, New York, U.S., via London, UK(arrived on 7/14/28)! The mail arrived in NYC on 7/28/1928, and Brooklyn, the next day! As for the addressee, he was a real estate developer! The 6d Nigerian definitive is in very good condition! Noted imperfections aside, this cover remains a nifty piece of British Nigerian and American postal history!