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This model is the AHI Chevrolet Impala (1959) in grey.
The model has a one-piece metal body, 48mm in length. It has been molded with the body casting having representations of the grille, lights, and front bumper cast at the front, doors and door handles, and side trim to the sides, and rear bumper and lights to the rear. The base is a solid, shaped, recycled tinplate item. There is no glazing. The original wheels are black plastic and attached to steel axles with a large slightly domed head on one side and crimped ends on the other. They are held to the chassis by means of the base plate.
The base plate has the manufacturer's mark "AHI, and the country of origin "JAPAN" is stamped in to the tin base. It is held in place by two machined rivets.
I do not know exactly when this item was issued but it would have been between 1959 and the mid 1960s.