I just purchased Dragon's new IDF M3 Half-track kit. The kit comes with decals but, all the markings state, "Unidentified Unit, 1967". The decal sheet has 5 different groups of numbers all having a total of 6 numbers. Do these represent registration numbers, vehicle numbers, units, etc.? I've researched on web to no avail. Can anyone help? And possibly give me some good sources to refer to.