FRENCH COLS. CAMEROUN 1940 COVER CENSOR COMM.B + B3 BETARE OYA to KRIBI via EDEA

Cameroun 50c pair franking envelope from Betare-Oya to Kribi; Betare-Oya Cameroun CDS cancels dated 2 AUG 1940; Opened By Military Authority tape + oval Military censors + Commission B Territoire du Cameroun circular censor + B3 censor in circle; Edea Cameroun postmark on the back.  Ex R.J Maddocks collection.