Iseki made some of the Bolens and White brand tractors among others. I don't know all of them, but at least the Bolens G152/4, G172/4, and G192/4? models. Seems like there are more though. I believe Bolens also made other modifications like adding engine thermostats and attachments besides just a white paint job and the addition of Bolens name. I'd love to see production numbers if they were out there for both Iseki branded and Bolens branded machines but that info is probably holed up in Japan somewhere.