John, ventured out in the -32 F weather today to grab the serial number off the picker. Man is it cold here! I am assuming that I have a late model because the tag says:

      This Oliver--MM Implement 
         was manufactured by   
  White Farm Equipment Company
      South Bend Indiana 46621

I found 2 serial number tags on it. One is at the back behind the husking bed, and is serial # 99662CF. The other is on top of the head, where the ears drop down onto the husking bed. The serial # there is 99370CC. Both are the exact same tag w/ different serial #'s. Both say model 83. I assume that one is for the main unit, one is for the head attachment. Thanks for the info. Hows the weather in Ohio?