Burma. 1941. Envelope addressed to the United States bearing SG 22, 1a brown (3) tied by Maymyo double ring with 'Opened by Censor' label and 'Passed Censor/Rangoon/60' cachet, underpaid with 'T' hand-stamp and instructional 'U.S. Postage, charge/to collect 2 cents/San Pedro, Calif.' Very fine.