French is absolutely possible, maybe was swapped during a refurbish/rebuild directly efter the war?
It was purchased in Norway 1994 from the Norwegian army(should have mentioned it in the first post) and imported to Sweden, then I bought it two years ago from the guy who imported it and I know that he didn't swap the speedo.
I have no idea when it came to Norway, maybe directly after the end if the war?
I stole(borrowed) the picture from http://jeep-dodge-gmc.com/ where they sell them new. I should probably try and ask them what the speedo actually is intended for.