Kenworth Truck Co. - The sign on the truck says it all – this is a Kenworth Model 888, from the late 1940s. Note the people standing to the side for scale.
Matchbox King Size KW-Dart Dump Truck 1 | Matchbox King Size… | Flickr
Matchbox King Size KW-Dart Dump Truck 2
IMCDb.org: KW-Dart Unknown in "Tekniskt magasin, 1957-1987"
IMCDb.org: KW-Dart D-Series in "Look at Life: Air Lift, 1966"
Loaded truck mine hi-res stock photography and images - Alamy
The Wabco 35 Haulpak - Contractor Magazine
Matchbox King Size KW-Dart Dump Truck 10 | Matchbox King Siz… | Flickr
Maximum or Maybe Median Matchbox Monday KW-Dart Dump Truck KIng Size K-2 | Collectors Weekly