Rim diameter and width might gibe a clue. The tyres appear to be oversize items, such as might be used on a quad bile or farm trailer, probably used by the farmer on such a unit, although they might have originally been aero tyres. The wheels look like they might be from a civilian airliner-type, from the 1950s, and the Airspeed Ambassador comes to mind, but again, it depends on the overall diameter and diameter of the wheel hubs, plus the diameter of the axle sleeves.