I went and looked at the tractor this afternoon and found the data plate on the firewall behind the shifter
As best as I can make out:
Mod 012 Serial # GS2190 Drawing 2120
With International Harvester printed on the bottom of the data plate.
I also have a couple pictures for those interested and have a valid email addy
Based on the numbers doing a web search..these are similar tractors
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Gunner"Considering the events of recent years, the world has a long way to go to regain its credibility and reputation with the US." unknown