Hey, The italian diagonal line had to do with the permit in those days, national, international haulage.
Have often see that sign on English trucks, Caution air brakes.
The German stickers was about the federation of haulage, ther a lot of them in different forms, it means
Long distance, fast and good service; It was nicknamed ( for girls 
) in Belgium as FERME SNELLE and GOED ( in b… ),
which means they were â– â– â– â– , pritty, good.
Eric,
