Hi everybody I am Max from Turin, Italy. Few days ago I went to Santena (map) to visit recent formation and took some pictures. I honestly think is not an authentic pictogram: from areal photos you posted can be seen the not accurate circles, from the ground can be seen the mechanical wheat bent, and it seems to be "throttled". In other zone the wheat is flattened from the base, like pressed with boards.  Just my opinion. Images Massimiliano Mastellaro Copyright 2012 I also found some photos I took in the CC appeared in Poirino in 2010 that I thought been lost; it is quite different and the wheat shows a "natural" bent and stretch on 1st or 2nd node. Maybe could interest.  Massimiliano Mastellaro