[C10 - C90 Bill]

With that Front Bumper on there, it looks like a 6500 to me. But there again, it looks like the hood has a Toro-Flow emblem on it, which would probably mean a 5000. Either way, it's either a '64 or a '65. Strange no Cab Lights, but even though most trucks like that had them, it was still probably an option you needed to put in for. Also, now that I think about it and without looking it up, I believe the "D" in DWA stands for "Diesel".

Also notice the "45,000" on the dump bed. It probably has 11 Fronts and 34 Rears.