Yes, Atkinson is featuring Oliver tractors and is hosting the Midwest Oliver Collectors. When asked for a picture of an Oliver tractor for the button, we chose the 660, because unlike the 770 and 880 which came out in 1958, the 660 was new in 1959 making it 50 years old this year.
Also scheduled to be there is Donie and Bev Fisher from Ohio with their huge trailer of Oliver collectables on display( sorry, not for sale).  Vendors will include Kettle River Iron Works and Wally's Hats.  
There will be corn picking and shelling, combining beans, discing and plowing, a working sawmill, garden tractor pull, small engines and hopefully a couple hundred tractors, perhaps 30 to 40 Olivers. 
 Lots to see &amp; do. Good food.
My cell is 309-221-5914