Rhodesia & Nyasaland
Enclosure - Diverted to Surface Mail

This aerogramme form was sent from LUSAKA (cds 12 MAR 1959) to New Jersey, U.S. The 1s stamp correctly paid the aerogramme rate to the U.S. in 1959, but the post office clerk detected an enclosure in the aerogramme and endorsed "ENCLOSURE" to indicate the violation of a basic rule for aerogrammes: "An air letter should not contain any enclosure; if it does it will be surcharged or sent by ordinary mail".  Accordingly, the aerogramme was treated as an airmail letter for which it was short paid. Hence, the aerogramme was diverted to surface mail.