United States. Nigeria - Camerouns). 1942. Envelope bearing United States SG 799, 1/2c orange (3) pre-cancel 'Chicago/ Ill' routed via Nigeria with Calabar transit '17th Mar' with boxed 'Censor' and framed hand-struck 'Censor' in blue on face (Little 1VBb) and circular 'Controle Postal/ Commission A/ Territoire du Cameroun' with 'Victoria (Mails) Cameroons Under British Mandate' receiver '22nd March 1942'. Wonderful item sent at Printed Matter rate with very rare Nigeria Censor (never seen by M. White) and Victoria (Mails) four years earlier than recorded by Proud.