parts man wrote:David, I don't mean top rain on your parade, but I don't think that is a '39. The '39s didn't have a starter, nor a hole in the clutch housing to put one, though an upgrade kit was availlable from IH after the starters became availlable. Also, until early 1940 the serial number tag was on the tin cover under the foot board that covers the brake shaft. 1939 serial numbers only went to 6743. I beleive I saw 5 digits evident on the tag.
I agree. There are a lot of later version parts on that tractor. The date code in the first picture looks like an O or a Q, '45 or '47.