Maximum or Maybe Median Matchbox Monday KW-Dart Dump Truck KIng Size K-2 With Box!

I posted one of these a ways back but this is a much nicer one and with the box. I generally don't think a Matchbox model is complete without the box.
This model was made from 1964 through 1968. As it say "New Model" on the end flap this one is from 1964. This style of box is much less common than the window boxes.
They call this a dump truck but it is actually a quarry truck like the type in open pit mines. And it not only has a simulated hydraulic dump bed but it is also articulated!