Postcard Tractor Hauling 1000 Bushels Of Wheat In North Dakota Posted. -The corners of the postcard are a bit worn and there is a crease in the upper edge. Please see the pictures for more details. The size is approx. 3.5" x 5.5". I take high-quality photos and scans of my items. Please use the eBay picture zoom feature to see the full details and condition of the card.