ChinaNigeria (British) 1941 Censored envelope to Switzerland
cover bearing SG50, 1d Carmine and SG51, 1 1/2d Brown (2) tied by Port Harcourt datestamp with "Opened by Examiner" Censor label and Boxed PP/14 Censor cachet with Crown / Opened by Examiner Censor label applied in transit. (pt)
