Hmm.....never saw one of them before. From the picture, it appears that at least three of them have been made....I guess you could consider them as being mass produced?
I am the importer of these Brand of Tractors Indo Trak based in johannesburg south africa, we are now launching a new model of walking tractors soon to hit farm lands near you.
do try stay posted as it is going to be a intresting "farmers friend"
do feel free to visit the Indo Trak website it is being updated so you may not be able to view our range of tractors.