BELGIAN CONGO 1913-32 STATIONERY + POSTAGE DUE + PPC + SURCHARGE COVER ..3 ITEMS

Picture postcard of Mayumbe bridge (Gabon) with 5c franking, Bomo postmark; + Congo Belge pre-paid 5c stationery postcard of Katanga Kabinda, Boma postmark, to Gand Belgium, with Postage Due 1c added; + envelope to Gentbrugge Belgium with 1F25 surcharge on 1F franking.  3 items.  Fine and clean.