This is a rare, vintage plastic model tank kit issued as a promotional "mail-away" premium by the Kellogg Co. of S.A. (South Africa) Ltd. The set includes the unassembled components of a military tank—modeled after the British Centurion—and its original, weathered mailing box. Includes the original cardboard mailing box featuring a return address to "Kellogg Co. of S.A. LTD, P.O. Box 610." The box shows significant vintage wear, including "Letter Post" markings, which adds to its provenance as a genuine mail-order item. Set is complete.