Show CONGO BORDER AIR SURVEY Assistant Trade Commissioner William L. L Kilcoin reports from Jo Johanne Jo- Jo hanne that since the first of this year square miles of pf the 20 square mile Rhodesian Congo border bolder concession have been surveyed surveyed surveyed sur sur- sur- sur from t the e air and made into mosaic maps by the Aircraft Operating Operating Op Op- company of London operating operating operating oper oper- from rom Two airplanes airplanes airplanes air air- planes are in use both of them DH with Nimbus engines |