So I had some interest in the Nord Lead 3 lately and noticed a difference between the panel illustrated in the manual and the one I tried out. The later had no "Global" label under the transposition buttons, neither it had the sort mode label next to the arrow selection buttons.
I found three different versions of the panel through quickly googling.
This one looks like the one in the manual: "global" label, "sort mode" label.

This other one does not have the said labels:

And this last one does not have them, plus it has black buttons for "Shift" and "Store", instead of the grey and red ones:

Plus the painting is different next to the pitch stick.
Does anyone knows exaclty when those different versions appeared? It may be a way to determine the time an instrument was manufactured, right?
Thanks
