Last Saturday i got a brochure of the volkswagen touareg. When i flick through it, i found this picture of the control for the differential gear.
Source: German Touareg Brochure, Page 14
I compared the two icons for a while. At first a couldn’t see any difference and thought that this must be a mistake. On the next page i found this picture of the same control with other icons.
Source: German Touareg Brochure, Page 17
Now i saw the difference. I don’t know which of the icons are actually used. But i think, that the last ones are much better, because you can see the difference between the two icons without searching for it.
additional comment
I have seen that the first one is used in the VW Touareg … too bad.