cover 1893 large, stampless envelope (275x127mm) from the United States Consulate in Hong Kong, addressed to The Collector of Customs, Washington, per "S.S. Belgie" and shows "U.S.CHARGE 20 CENTS/TO COLLECT" with pair of U.S. 10c. Postage Dues cancelled by blue crayon, reverse with Consulate seal and U.S. transit c.d.s.; some crumpling around edges, nevertheless a very early and scarce example pf Diplomatic Bag Mail