This vintage Mighty Tonka yellow steel toy dump truck is from the 1970s. It's big, heavy, and sturdy, measuring nearly 19 inches long by 10" high. The tires are marked XMB 975.
There is paint wear and rust as shown, mostly to the interior of the dump bed and the roof of the driver's cab. The black plastic front grill, tank, steering wheel, and exhaust pipes are intact. The acrylic windows to the cab are all present, though there's a minor crack and crazing to the side windows on one side, shown in the next to last picture.