South Africa. (United States). 1918. United States postal stationery envelope 3 cents violet cancelled by New York roller addressed to South Africa, underpaid with 'T/ N.Y./ Centimes 20' duplex bearing South Africa postage dues SG D46, 2c violet and black tied by Pine Street receiver and forwarded to Woodstock with arrival and circular 'Passed Censor/ 10/99' in blue on face.