Nikon Eco-glass and natures Echo lawn-mower
Doing some web research it seems that the Nikon 85mm 1.4D was made in three production runs and that there are at least two versions possibly 3, with slightly different optical formulas, the last run was circa 2010 which my lens comes from. It seems very sharp, and the bokeh is great! It may have been upgrade to eco-glass, perhaps starting in the second batch in 2006. I have seen at least two different MTF's
You can read the eco-mowers serial number on the ear quite easily in the above crop.
A few more from today: