Tinkabi Tractor

Google: Tinkabi tractor See especially: Small Farm Equipment for Developing Countries (1986) (download from IRRI - 30MB) especially "Design and Development of Small Farm Equipment to simplify fabrication, operation, and maintenance in developing countries" and The Swaziland Society: Focus on Swaziland, Issue Number 51 "The Tinkabi project 1968 – 1990 A short history of the little tractor that almost changed the world"

Bob