Hi John,
  Received your call.  In all my digging down in our Archives, I have never run across anything that would support what your asking.  Now, I'm not saying it didn't happen, but we currently don't have any evidence of it.

  I know that I have run across statements of the fact that Oliver had authorized agents in foreign countries, but I am not sure that means they had other companies producing their plows.?!  I think that means they had resellers throughout the world that exclusively carried only Oliver implements.

  I'll keep looking and let you know if I find anything.

Travis Childs