I didn't find anything too excited. One wheat, 1945. Did get a lot of great condition 60s 70s and 80s. Here is the pics of a 1974 s i found near the end
A box with only one wheat? The lowest number of wheats I've found in a box is about 5, and the most was 72.
My lowest per box was one also, but it was a 1926 so I wasn't too chuffed about it. Highest is 146, about half of which were BU 1943 steels. Just last week I had a box that had 130 wheats in it.