Malaya 1940 Singapore Envelope Addressed to a Catholic Mission @ Japan, Returned to Sender "RETOUR" handstamp in Violet; Bearing 8¢ Silver Jubilee & 4¢ Coronation Adhesives with Unrecorded Label Affixed over Original Address; Apparently Opened by Censor and Returned Due to the Outbreak of the War in the Pacific; RARE (46-852)