Nels postal card lot of 4 all prepaid 10c with pictures of a railway being built in Elisabethville, the Lomami river near Kisengwa, native planter's houses near Stanleyville and a landscape in Boma.  Postmarked Kinshasa date illegible (probably 1930's), the cards were mailed to Brooklyn NY with a signature in message section.  These are four of six cards mailed to the same Brooklyn address.  Cards are in overall good condition but 3 of them have an outline of possibly a sticker or removed stamp in the top right corner of the picture side.