I sure would like to know more about these bar code type markings. I read a story in Army Motors that said they were a representation of army unit numbers used for shipping vehicles on a sea voyage. Probably because it would be easier to put the vehicles of a certain unit together on the same boat that way. But you see different versions of the bars, with and without a letter next to it.weasel_nut wrote:
There was also a counter espionage identification used on some vehicles which landed during Operation Overlord. They used Color Bar coding on the front bumpers to indicate units....But that is another whole story in itself.
Does anyone know more about these color bar markings?

Jeeps with color bar markings on the right of the bumper with original unit number untouched

Mack truck with color bar marking painted on the left with original unit number moved further right

Autocar truck with color bar marking painter over regular unit number
GMC with color bar marking on door