January 4th, 2010:
David Doyle in his book "Standard Catalog of Military Vehicles" has an excellent section in the appendixes on standard vehicle markings from WWII on, which I recommend highly to anyone wanting to know what markings should be on their truck or trailer. Admittedly different armies and different units in those armies often added markings peculiar to their needs at that time and place. The "8" in the ball bridge stencil for the M35 series was supposed to be in the top right corner of the passenger door, but as M1075's icon above shows it, they could be differently placed due to operational orders in a given unit. At one time the "8" in the circle was white on a yellow background (I belive-check D.Doyle ibid) when the trucks were semi-gloss OD.
Somehow I can see a unit using the 8 ball insignia, kinda like the character "Sgt. Oddball "played by Donald Sutherland in "Kelly's Heroes" probably marked his tank different then all the others...... "Negative Waves, Moriarty, Always with the Negative Waves"....... It did seem that unofficial names and markings proliferated in war zones, I'm sure it confused the enemy as much as it confuses us amateur historians today. Please note David Doyle seemed to have overlooked the White Scout Car in WWII in the above dictionary, or I haven't hit the page yet.... In either case, Doyle on military vehicles is like Hoyle in cards....
Cheers,
Kyle F. McGrogan