Something occurs to me Ron that I had never thought of all the times you've posted that photo, or that I've known of the early ones with that decal.  Never been a real 1206 here, just 7 and 8s, but- growing up I spent a lot of hours pushing around a 1/16 scale Ertl 1206.   Those had the white decal early '65.   For quite a while, before the interwebs and some of the other old IH trivia that became more common knowledge, I would see real 1206s with the emblems like all the other 06-26-56 series.   Pretty sure I had a driver's license the first time I saw an authentic, in original paint, tractor that way because I remember doing a double-take and turning around and parking on the side of the road to go look at it sitting in the field.   I think it took a little longer for the 100+ horsepower tractors to catch on here than in some other areas, so they were probably kind of a rarity at the very start.