Is this all yellow truck auctionned by Vectis on November 17, 2020 a pre-production model, a colour sample, a promotionnal or a code 3 ? Note thatexcept for the hubs the truck has the same finish as the drawing on the box. There's already a precedent with the Michigan tractor dozer ref. 976, we know that it's all yellow version has been ordered by the manufacturer as a promotionnal model.
Note that the small lever to lift the tipper rear is much smaller than on the regular models. Also the wheel axle ends seem to be painted blue.
Photos by courtesy of Vectis Auctions.
Unless it's a trick of the camera, there seems to be a hint of red on the hubs very close to the axle ends - which were not normally painted. I suspect a coat of Humbrol 15 Midnight Blue has been applied - it would be interesting to see the backs of the wheels, or to remove a tyre.