U.S. & Worldwide Stamps & Postal History

1903 (29 June) 4ch UPU stationery card, uprated with 2ch blue, tied by "MASANPO/COREE" French double circle cds, repeated alongside, addressed to Riga (Russia), routed via Nagasaki (violet 2 July pmk, with additional two Japanese cancels at top and bottom of the card), Riga arrival postmark struck on the front of both values, fine example of this extremely rare cancel, commercially used on card (sender writes in German "from Masanpo Korea, on the way to Port Arthur and Vladivostok, my best wishes on a rare postcard")
Estimate: $750