This is a vintage Tomica No. 48 Mitsubishi P.T.V. Lamp Bus (Passenger Transfer Vehicle) featuring "TDA" (Toa Domestic Airlines) livery.
The model was released in September 1979 as part of the classic "black box" series and manufactured in Japan.
This specific die-cast toy has a functional gimmick where the passenger compartment can be raised.
Condition: See photos for details. WYSIWYG.