Field Artillery tractor camo

[Maurice Donckers]

I only came along two pictures of 13 cab Quads in the Antwerp area (with 17 Pr behind) , but the trucks are so coverred in dust , that it is even impossible to see the markings or reg . no.
There seem to be not a lot of pictures around from 13 cab quads in use in Belgium , Holland up till January 1945.
Another question about Quads : there should be a plotting board or something in the brackets above the driver ,does anybody know what this should be ?
Maurice